UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

                   CERTIFIED SHAREHOLDER REPORT OF REGISTERED
                         MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number: 811-06590

                 Morgan Stanley Insured Municipal Income Trust
               (Exact name of registrant as specified in charter)

1221 Avenue of the Americas, New York, New York 10020
       (Address of principal executive offices)               (Zip code)

                               Ronald E. Robison
             1221 Avenue of the Americas, New York, New York 10020
                     (Name and address of agent for service)

Registrant's telephone number, including area code: 212-762-4000

Date of fiscal year end: October 31, 2006

Date of reporting period: October 31, 2006

Item 1 - Report to Shareholders

Welcome, Shareholder:

In this report, you’ll learn about how your investment in Morgan Stanley Insured Municipal Income Trust performed during the annual period. We will provide an overview of the market conditions, and discuss some of the factors that affected performance during the reporting period. In addition, this report includes the Trust’s financial statements and a list of Trust investments.

Market forecasts provided in this report may not necessarily come to pass. There is no assurance that the Trust will achieve its investment objective. The Trust is subject to market risk, which is the possibility that market values of securities owned by the Trust will decline and, therefore, the value of the Trust’s shares may be less than what you paid for them. Accordingly, you can lose money investing in this Trust.
Income earned by certain securities in the portfolio may be subject to the federal alternative minimum tax (AMT).



Fund Report
For the year ended October 31, 2006

Market Conditions

Against the backdrop of strong economic growth, good employment data and inflationary pressures stemming from rising oil prices, the Federal Open Market Committee (the ‘‘Fed’’) continued its tightening campaign during the first eight months of the reporting period, raising the federal funds target rate six times to 5.25 percent at the end of June. In the months that followed, however, economic growth moderated as consumer spending and housing weakened while inflation concerns eased, prompting the Fed to keep its target rate unchanged for the remainder of the period.

Short-term municipal bonds posted the lowest returns as Fed rate hikes pushed yields in this portion of the market higher. Representative yields on two-year AAA municipals increased from 3.10 percent to 3.50 percent during the period. In contrast, long-term municipal bonds earned the best returns, with yields on 30-year AAA-rated municipal bonds declining from 4.60 percent to 4.10 percent. Accordingly, the spread between long-term and short-term interest rates narrowed and the slope of the municipal yield curve flattened dramatically.

Continued interest in the municipal market by institutional investors and non-traditional buyers such as hedge funds strengthened demand for municipal bonds. However, municipal bond issuance lagged last year’s record pace by 12 percent in the first 10 months of 2006. The overall decline was due in great part to a slowdown of refunding activity to roughly one half of the previous year’s rate. Issuers in California, Texas, Florida, New York and Illinois accounted for about 40 percent of 2006 year-to-date underwriting volume. Bond issues backed by insurance had close to a 50 percent market share.

Strong demand and lower supply helped municipal bond performance keep pace with that of Treasuries. The municipal-to-Treasury yield ratio measures the relative attractiveness of the two sectors. A decline in this ratio indicates that while municipals outperformed Treasuries for the period measured, they also became richer (less attractive) on a relative basis. During the 12-month reporting period, the 30-year municipal-to- Treasury yield ratio declined from 92 to 87 percent. In comparison, this yield ratio reached a high of 102 percent in 2005.

Performance Analysis

For the 12-month period ended October 31, 2006, the net asset value (NAV) of Morgan Stanley Insured Municipal Income Trust (IIM) increased from $15.50 to $15.81 per share. Based on this change plus reinvestment of tax-free dividends totaling $0.800 per share and a long-term capital gain distribution of $0.045 per share, the Trust’s total NAV return was 8.14 percent. IIM’s value on the New York Stock Exchange (NYSE) moved from $13.86 to $14.55 per share during the same period. Based on this change plus reinvestment of dividends and distributions, the Trust’s total market return was 11.30 percent. IIM’s NYSE market price was at a 7.97 percent discount to

2




its NAV. During the fiscal period, the Trust purchased and retired 694,700 shares of common stock at a weighted average market discount of 7.85 percent. Past performance is no guarantee of future results.

Monthly dividends for the fourth quarter of 2006, declared in September, decreased from $0.0675 to $0.0575 per share. The dividend reflects the current level of the Trust’s net investment income. IIM’s level of undistributed net investment income was $0.050 per share on October 31, 2006, versus $0.120 per share 12 months earlier.1

During the reporting period, the Trust’s interest-rate posture continued to reflect the anticipation of higher rates. As a result, at the end of October the Trust’s option-adjusted duration* including leverage was positioned at 9.7 years. To implement this strategy of reducing the portfolio’s duration, a U.S. Treasury futures hedge and a BMA (Bond Market Association) interest-rate swap contract were used. This positioning helped total returns as interest rates rose but tempered performance when rates declined. Purchases during the period favored bonds with maturities of 20 years or longer. The Trust benefited from this emphasis on the long end of the yield curve, as this segment of the market performed strongly.

Another boost to performance came from issues that appreciated significantly when they were pre-refunded. Reflecting a commitment to diversification, the Trust’s net assets of approximately $494 million, including preferred shares, were invested among 11 long-term sectors and 80 credits. As of the close of the period, the Trust’s largest allocations were to the transportation, water and sewer, and electric sectors.

As discussed in previous reports, the total income available for distribution to holders of common shares includes incremental income provided by the Trust’s outstanding Auction Rate Preferred Shares (ARPS). ARPS dividends reflect prevailing short-term interest rates on maturities ranging from one week to two years. Incremental income to holders of common shares depends on two factors: the amount of ARPS outstanding and the spread between the portfolio’s cost yield and its ARPS auction rate and expenses. The greater the spread and the higher the amount of ARPS outstanding, the greater the amount of incremental income available for distribution to holders of common shares. The level of net investment income available for distribution to holders of common shares varies with the level of short-term interest rates. ARPS leverage also increases the price volatility of common shares and has the effect of extending portfolio duration.

The Fed’s policy of raising interest rates throughout much of the period increased the cost of ARPS borrowing to the common shareholder, which reduced the benefits of leverage. During this 12-month period, ARPS leverage contributed approximately $0.09 per share to common-share earnings. The Trust had five ARPS series totaling $155 million, representing 31 percent of net assets, including preferred shares. ARPS rates ranged from 1.48 to 4.00 percent during the fiscal period.

The Trust’s procedure for reinvesting all dividends and distributions in common shares is through purchases in the open market. This method helps support the

3




market value of the Trust’s shares. In addition, we would like to remind you that the Trustees have approved a procedure whereby the Trust may, when appropriate, purchase shares in the open market or in privately negotiated transactions at a price not above market value or net asset value, whichever is lower at the time of purchase. The Trust may also utilize procedures to reduce or eliminate the amount of ARPS outstanding, including their purchase in the open market or in privately negotiated transactions.

Performance data quoted represents past performance, which is no guarantee of future results, and current performance may be lower or higher than the figures shown. Investment return, net asset value and common share market price will fluctuate and Trust shares, when sold, may be worth more or less than their original cost.

There is no guarantee that any sectors mentioned will continue to perform as discussed herein or that securities in such sectors will be held by the Trust in the future.

1 Income earned by certain securities in the portfolio may be subject to the federal alternative minimum tax (AMT).
* A measure of the sensitivity of a bond’s price to changes in interest rates, expressed in years. Each year of duration represents an expected 1 percent change in the price of a bond for every 1 percent change in interest rates. The longer a bond’s duration, the greater the effect of interest-rate movements on its price. Typically, trusts with shorter durations perform better in rising-interest-rate environments, while trusts with longer durations perform better when rates decline. Duration calculations are adjusted for leverage.

TOP FIVE SECTORS   
Transportation   34.2
Water & Sewer   28.5  
Electric   24.2  
Refunded   18.1  
General Obligation   8.5  

CREDIT ENHANCEMENTS   
FGIC   28.0
MBIA   25.0  
Ambac   21.7  
FSA   21.2  
XLCA   3.7  
AGC   0.4  
Data as of October 31, 2006. Subject to change daily. All percentages for top five sectors are as a percentage of net assets applicable to common shareholders. All percentages for credit enhancements are as a percentage of total long-term investments. These data are provided for informational purposes only and should not be deemed a recommendation to buy or sell the securities mentioned. Morgan Stanley is a full-service securities firm engaged in securities trading and brokerage activities, investment banking, research and analysis, financing and financial advisory services.

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For More Information About Portfolio Holdings

Each Morgan Stanley trust provides a complete schedule of portfolio holdings in its semiannual and annual reports within 60 days of the end of the trust’s second and fourth fiscal quarters. The semiannual reports and the annual reports are filed electronically with the Securities and Exchange Commission (SEC) on Form N-CSRS and Form N-CSR, respectively. Morgan Stanley also delivers the semiannual and annual reports to trust shareholders and makes these reports available on its public web site, www.morganstanley.com. Each Morgan Stanley trust also files a complete schedule of portfolio holdings with the SEC for the trust’s first and third fiscal quarters on Form N-Q. Morgan Stanley does not deliver the reports for the first and third fiscal quarters to shareholders, nor are the reports posted to the Morgan Stanley public web site. You may, however, obtain the Form N-Q filings (as well as the Form N-CSR and N-CSRS filings) by accessing the SEC’s web site, http://www.sec.gov. You may also review and copy them at the SEC’s public reference room in Washington, DC. Information on the operation of the SEC’s public reference room may be obtained by calling the SEC at (800) SEC-0330. You can also request copies of these materials, upon payment of a duplicating fee, by electronic request at the SEC’s e-mail address (publicinfo@sec.gov) or by writing the public reference section of the SEC, Washington, DC 20549-0102.

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Distribution by Maturity
(% of Long-Term Portfolio) As of October 31, 2006

Weighted Average Maturity: 18 Years(a)

(a) Where applicable maturities reflect mandatory tenders, puts and call dates.
Portfolio structure is subject to change.

Geographic Summary of Investments
Based on Market Value as a Percent of Total Investments


Arizona   0.8
California   14.0  
Colorado   1.5  
District of Columbia   3.4  
Florida   5.0  
Georgia   2.6  
Hawaii   1.1  
Illinois   7.4  
Indiana   0.9
Louisiana   0.9  
Maryland   0.3  
Massachusetts   1.1  
Michigan   3.4  
Minnesota   1.1  
Missouri   1.2  
Nebraska   1.3  
Nevada   3.7
New Hampshire   0.3  
New Jersey   2.7  
New York   9.5  
North Carolina   2.0  
Ohio   0.2  
Oregon   0.7  
Pennsylvania   3.6  
Rhode Island   2.2
South Carolina   3.4  
Texas   16.3  
Utah   1.1  
Virginia   1.4  
Washington   6.7  
West Virginia   0.6  
Joint exemptions*   (0.4
Total†   100.0
* Joint exemptions have been included in each geographic location.
Does not include open short future contracts with an underlying face value amount of $23,515,938 with unrealized depreciation of $189,668 and an interest rate swap contract with an unrealized depreciation of $465,502.

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Call and Cost (Book) Yield Structure
(Based on Long-Term Portfolio) As of October 31, 2006

Years Bonds Callable—Weighted Average Call Protection: 7 Years

Cost (Book) Yield(b)—Weighted Average Book Yield: 5.0%

(a) May include issues initially callable in previous years.
(b) Cost or ‘‘book’’ yield is the annual income earned on a portfolio investment based on its original purchase price before the Trust’s operating expenses. For example, the Trust is earning a book yield of 6.1% on 1% of the long-term portfolio that is callable in 2007.
Portfolio structure is subject to change.

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Morgan Stanley Insured Municipal Income Trust

Portfolio of Investments October 31, 2006


PRINCIPAL
AMOUNT IN
THOUSANDS
  COUPON
RATE
MATURITY
DATE
      VALUE
    Tax-Exempt Municipal Bonds (144.3%)            
    General Obligation (8.5%)              
$     3,000   Los Angeles, California, Ser 2004 A (MBIA)   5.00   09/01/24   $     3,194,700  
    District of Columbia,            
  5,000   Refg Ser 1993 B (Ambac)   5.50     06/01/09     5,238,250  
  6,000   Refg Ser 1993 B (FSA)   5.50     06/01/10     6,343,440  
  4,110   Pennsylvania, First Ser 2003 (MBIA)‡‡   5.00     01/01/19     4,426,634  
  4,000   Houston, Texas, Public Impr & Refg Ser 2001 B (FSA)   5.50     03/01/17     4,289,760  
  3,000   King County, Washington, Refg 1998 Ser B (MBIA)   5.25     01/01/34     3,078,090  
  2,500   Spokane School District #81, Washington, Ser 2005 (MBIA)   0.00   12/01/23     2,390,400  
  27,610               28,961,274  
    Educational Facilities Revenue (4.6%)            
  2,500   University of Arizona, 2003 Ser B COPs (Ambac)   5.00     06/01/23     2,629,325  
    University of California,            
  2,000   Ser 2003 B (Ambac)   5.00     05/15/22     2,127,060  
  2,000   Multi Purpose Ser Q (FSA)   5.00     09/01/31     2,104,140  
  3,000   District of Columbia, American Association for the Advancement of Science Ser 1997 (Ambac)   5.125     01/01/27     3,097,320  
  1,300   New Hampshire Health & Education Facilities Authority, University of New Hampshire Ser 2001 (Ambac)   5.125     07/01/33     1,373,229  
  1,000   University of Medicine and Dentistry, New Jersey, Ser 2004 COPs (MBIA)   5.00     06/15/29     1,056,680  
  3,000   University of North Carolina at Wilmington, Student Housing Ser 2005 COPs (FGIC)   5.00     06/01/36     3,148,200  
  14,800               15,535,954  
    Electric Revenue (24.2%)            
  4,000   Arkansas River Power Authority, Colorado, Power Ser 2006 (XLCA)   5.25     10/01/40     4,312,400  
  4,000   Lafayette, Louisiana, Utilities Ser 2004 (MBIA)   5.25     11/01/25     4,365,200  
  2,500   Missouri Joint Municipal Electric Utility Commission Plum Point Ser 2006 (MBIA)   5.00     01/01/26     2,669,375  
  5,000   Nebraska Public Power District, 2003 Ser A (Ambac)   5.00     01/01/35     5,231,700  
    Long Island Power Authority, New York,            
  4,000   Ser 2006 A (XLCA)   5.00     12/01/26     4,261,560  
  3,000   Refg Ser 2003 C (FSA)   5.00     09/01/28     3,158,400  
  6,000   North Carolina Municipal Power Agency # 1, Catawba Ser 2003 A (MBIA)   5.25     01/01/19     6,468,840  
    South Carolina Public Service Authority, Santee Cooper            
  10,000   2003 Ser A (Ambac)   5.00     01/01/27     10,516,800  
  4,000   2006 Ser A (MBIA)   5.00     01/01/36     4,249,000  

See Notes to Financial Statements

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Morgan Stanley Insured Municipal Income Trust

Portfolio of Investments October 31, 2006 continued


PRINCIPAL
AMOUNT IN
THOUSANDS
  COUPON
RATE
MATURITY
DATE
      VALUE
    Lower Colorado River Authority, Texas,            
$   10,000   Refg Ser 1999 A (FSA)   5.875   05/15/16   $   10,625,899  
  5,000   Refg Ser 2001 (FSA)   5.00     05/15/26     5,170,950  
  8,780   Refg Ser 2002 (MBIA)   5.00     05/15/31     9,165,091  
  5,000   Intermountain Power Agency, Utah, 2003 Ser A (FSA)   5.00     07/01/21     5,348,650  
  6,000   Cowlitz County Public Utility District # 1, Washington, Production Ser 2006 (MBIA)   5.00     09/01/31     6,360,720  
  77,280               81,904,585  
    Hospital Revenue (5.0%)            
  2,000   Illinois Finance Authority, Swedish American Hospital Ser 2004 (Ambac)   5.00     11/15/31     2,094,960  
  2,000   Indiana Health Facilities Financing Authority, Community Health Ser 2005 A (Ambac)   5.00     05/01/35     2,100,980  
  105   Missouri Health & Educational Facilities, SSM Health Care
Ser 1998 A (MBIA)
  5.00     06/01/22     107,627  
  1,500   Medical University Hospital Authority, South Carolina, FHA Insured Mtge Ser 2004 A (MBIA)   5.25     02/15/25     1,612,380  
    Amarillo Health Facilities Corporation, Texas,            
  3,020   Baptist St Anthony’s Hospital Ser 1998 (FSA)   5.50     01/01/16     3,365,820  
  5,075   Baptist St Anthony’s Hospital Ser 1998 (FSA)   5.50     01/01/17     5,676,236  
  2,000   Washington State Health Care Facilities Authority, Kadlec Medical Center Ser 2006 A (AGC)   5.00     12/01/30     2,107,640  
  15,700               17,065,643  
    Industrial Development/Pollution Control Revenue (2.2%)            
  5,000   Hawaii Department of Budget and Finance, Hawaiian Electric Co Ser 1999 C (AMT) (Ambac)   6.20     11/01/29     5,387,350  
  2,000   Delaware County Industrial Development Authority, Pennsylvania, Aqua Inc Ser A 2005 (AMT) (FGIC)   5.00     11/01/37     2,090,200  
  7,000               7,477,550  
    Public Facilities Revenue (7.9%)            
  15,000   Miami-Dade County School Board, Florida, 2003 Ser A (FGIC)   5.00     08/01/29     15,666,600  
  3,000   Orange County School Board, Florida, Ser 2001 A COPs (Ambac)   5.25     08/01/14     3,256,980  
  4,200   New York State Dormitory Authority, School District Ser 2002 E (MBIA)   5.50     10/01/17     4,627,602  
  3,000   Oregon Department of Administrative Services, Ser 2005 B COPs (FGIC)   5.00     11/01/24     3,198,030  
  25,200               26,749,212  

See Notes to Financial Statements

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Morgan Stanley Insured Municipal Income Trust

Portfolio of Investments October 31, 2006 continued


PRINCIPAL
AMOUNT IN
THOUSANDS
  COUPON
RATE
MATURITY
DATE
      VALUE
    Recreational Facilities Revenue (6.8%)            
$     3,000   Denver Convention Center Hotel Authority, Colorado, Refg Ser 2006 (XLCA)   5.00   12/01/30   $     3,183,000  
  2,000   District of Columbia Ballpark, Ser 2006 B-1 (FGIC)   5.00     02/01/31     2,115,960  
    Metropolitan Pier & Exposition Authority, Illinois,            
  3,000   McCormick Place Refg Ser 2002 B (MBIA)   0.00 ##    06/15/18     2,506,290  
  5,000   McCormick Place Ser 2002 A (MBIA)   5.25     06/15/42     5,365,550  
  2,400   Marion County Convention & Recreational Facilities Authority, Indiana, Refg Ser 2003 A (Ambac)   5.00     06/01/19     2,537,760  
  1,500   Baltimore, Maryland, Convention Center Hotel Ser 2006 A (XLCA)   5.25     09/01/39     1,632,660  
  1,000   Omaha Convention Hotel Corporation, Nebraska, Ser 2002 A (Ambac)   5.50     04/01/18     1,086,820  
    New York City Industrial Development Agency, New York,            
  2,000   Queens Baseball Stadium – Ser 2006 (Ambac)   5.00     01/01/31     2,144,020  
  2,500   Yankee Stadium Ser 2006 (FGIC)   5.00     03/01/46     2,651,350  
  22,400               23,223,410  
    Transportation Facilities Revenue (34.2%)            
  1,000   Phoenix Civic Improvement Corporation, Arizona, Sr Lien Airport Ser 2002 B (AMT) (FGIC)   5.75     07/01/19     1,093,450  
  9,000   Long Beach, California, Harbor Refg Ser 1998 A (AMT) (FGIC)   6.00     05/15/18     10,618,470  
  5,000   Atlanta, Georgia, Airport Ser 2004 C (FSA)   5.00     01/01/33     5,241,200  
  5,000   Chicago, Illinois, O’Hare Int’l Airport, Third Lien Ser 2005 A (MBIA)   5.25     01/01/25     5,445,350  
  4,000   Illinois Toll Highway Authority, Priority Refg 1998 Ser A (FSA)   5.50     01/01/15     4,492,760  
  8,000   Massachusetts Turnpike Authority, Metropolitan Highway 1997 Ser A (MBIA)‡‡   5.00     01/01/37     8,173,400  
  5,000   Minneapolis – St Paul Metropolitan Airports Commission, Minnesota, Ser 2001 C (FGIC)   5.25     01/01/32     5,251,100  
  3,000   St Louis, Missouri, Lambert Int’l Airport Ser 2001 A (MBIA)   5.00     07/01/20     3,125,760  
  7,000   Nevada Department of Business & Industry, Las Vegas Monorail 1st Tier Ser 2000 (Ambac)   5.375     01/01/40     7,295,890  
  2,000   Delaware River Port Authority, New Jersey & Pennsylvania, Ser 1995 (FGIC)**   5.50     01/01/26     2,042,920  
  4,000   New Jersey Transportation Trust Fund Authority, Ser 2005 C (FGIC)   5.25     06/15/20     4,387,400  
    Metropolitan Transportation Authority, New York,            
  3,000   Dedicated Tax Fund Refg Ser 2002 A (FSA)   5.25     11/15/24     3,247,860  
  10,000   Transportation Refg Ser 2002 A (FGIC)   5.00     11/15/25     10,642,000  
  10,000   Triborough Bridge & Tunnel Authority, New York, Refg 2002 E (MBIA)   5.25     11/15/22     10,826,200  
  9,000   Dallas-Fort Worth International Airport, Texas, Ser 2003 A (AMT) (FSA)   5.375     11/01/22     9,680,220  
  3,000   Harris County, Texas, Toll Road Sr Lien Ser 2005 A (FSA)   5.25     08/15/35     3,147,660  
  4,000   Texas Turnpike Authority, Central Texas First Tier Ser 2002 A (Ambac)   5.50     08/15/39     4,343,640  

See Notes to Financial Statements

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Morgan Stanley Insured Municipal Income Trust

Portfolio of Investments October 31, 2006 continued


PRINCIPAL
AMOUNT IN
THOUSANDS
  COUPON
RATE
MATURITY
DATE
      VALUE
$ 3,000   Richmond Metropolitan Authority, Virginia, Refg Ser 2002 (FGIC)   5.25   07/15/22   $ 3,435,900  
    Port of Seattle, Washington,            
  8,025   Passenger Facility Ser 1998 A (MBIA)‡‡   5.00     12/01/23     8,238,200  
  5,000   Ser 2001 B (AMT) (MBIA)   5.625     02/01/24     5,286,250  
  108,025               116,015,630  
    Water & Sewer Revenue (28.5%)            
  5,000   Los Angeles Department of Water & Power, California, Water 2004 Ser C (MBIA)   5.00     07/01/24     5,318,600  
  4,000   Oxnard Financing Authority, California, Water Ser 2004 (XLCA)   5.00     06/01/28     4,204,520  
  3,000   Sacramento Sanitation Districts Financing Authority, California, Ser 2006 (FGIC)   5.00     12/01/36     3,205,950  
    San Diego County Water Authority, California,            
  5,000   Ser 2002 A COPs (MBIA)   5.00     05/01/27     5,250,150  
  5,000   Ser 2004 A COPs (FSA)   5.00     05/01/29     5,292,650  
  5,000   Tampa Bay Water Authority, Florida, Ser 2001 A (FGIC)   5.00     10/01/28     5,192,750  
  5,000   Atlanta, Georgia, Water & Wastewater, Ser 2004 (FSA)   5.00     11/01/23     5,320,100  
  2,000   Augusta, Georgia, Water & Sewer Ser 2004 A (FSA)   5.25     10/01/39     2,157,580  
    Detroit, Michigan,            
  3,000   Sewage Refg Ser 2003 A (FSA)   5.00     07/01/26     3,144,360  
  8,000   Sewage Refg Ser 2003 A (FSA)   5.00     07/01/28     8,366,000  
  3,000   Sewage Disposal Ser 2001 A (FGIC)   5.125     07/01/31     3,148,740  
  5,080   Las Vegas Water District, Nevada, Impr & Refg Ser 2003 A (FGIC)   5.25     06/01/19     5,483,708  
  1,005   Cleveland, Ohio, Waterworks Impr & Refg 1998 Ser I (FSA)   5.00     01/01/23     1,027,391  
  5,000   Philadelphia, Pennsylvania, Water & Wastewater Ser 1998 (Ambac)   5.25     12/15/14     5,552,150  
  15,000   Houston, Texas, Combined Utility Refg 2004 Ser A (FGIC)   5.25     05/15/23     16,301,250  
  3,000   San Antonio, Texas, Water & Refg Ser 2002 A (FSA)   5.00     05/15/32     3,115,200  
    Seattle, Washington,            
  2,890   Water Refg 2003 (MBIA)   5.00     09/01/20     3,090,566  
  2,870   Water Refg 2003 (MBIA)   5.00     09/01/23     3,041,540  
  5,000   King County, Washington, Sewer Refg 2001 (FGIC)   5.00     01/01/31     5,184,950  
  2,900   West Virginia Water Development Authority, Loan Program II Refg 2003 Ser B (Ambac)   5.25     11/01/23     3,159,956  
  90,745               96,558,111  
    Other Revenue (4.3%)            
  3,000   California, Economic Recovery Ser 2004 A (MBIA)   5.00     07/01/15     3,282,210  
  6,000   Golden State Tobacco Securitization Corporation, California, Enhanced Asset Backed Ser 2005 A (FGIC)   5.00     06/01/38     6,331,620  
    New York City Transitional Finance Authority, New York,            
  2,000   2000 Ser C (Ambac)   5.25     08/01/21     2,165,040  
  2,500   2000 Ser C (Ambac)   5.25     08/01/22     2,694,875  
  13,500               14,473,745  

See Notes to Financial Statements

11




Morgan Stanley Insured Municipal Income Trust

Portfolio of Investments October 31, 2006 continued


PRINCIPAL
AMOUNT IN
THOUSANDS
  COUPON
RATE
MATURITY
DATE
      VALUE
    Refunded (18.1%)            
    California Infrastructure & Economic Development Bank,            
$     5,000   Bay Area Toll Bridges Seismic Retrofit 1st Lien Ser 2003 A (FGIC) (ETM)   5.00   01/01/28   $     5,689,900  
  10,000   Bay Area Toll Bridges Seismic Retrofit 1st Lien Ser 2003 A (Ambac) (ETM)   5.00     01/01/28     11,379,800  
  15,000   Chicago, Illinois, Neighborhoods Alive 21 Ser 2001 A (FGIC)   5.50     01/01/11 †    16,095,750  
  3,275   Massachusetts Municipal Wholesale Electric Company, 1993 Ser A (Ambac) (ETM)   5.00     07/01/10     3,376,460  
  5,000   New Jersey Educational Facilities Authority, Higher Education Ser 2002 A (Ambac)††   5.25     09/01/12 †    5,439,950  
  5,000   Allegheny County Hospital Development Authority, Pennsylvania, Pittsburgh Mercy Health Ser 1996 (Ambac) (ETM)   5.625     08/15/18     5,439,250  
  10,000   Rhode Island Depositors Economic Protection Corporation, Refg 1992 Ser B (MBIA) (ETM)   6.00     08/01/17     10,515,300  
  3,000   Alexandria Industrial Development Authority, Virginia, Institute for Defense Analysis Ser 2000 A (Ambac)   5.90     10/01/10 †    3,285,060  
  56,275               61,221,470  
  458,535   Total Tax-Exempt Municipal Bonds  (Cost $463,104,752)   489,186,584  
    Short-Term Tax-Exempt Municipal Obligations (3.4%)        
  1,900   Michigan Strategic Fund, Detroit Symphony Orchestra Ser 2001 B (Demand 11/01/06)   3.65   06/01/31     1,900,000  
  5,300   Las Vegas, Nevada, Ser 2006 C (Demand 11/01/06)   3.60   06/01/36     5,300,000  
  4,200   Harris County Health Facilities Authority, Texas, St Luke’s Episcopal Hospital Ser 2001 B (Demand 11/01/06)   3.65   02/15/31     4,200,000  
  11,400   Total Short-Term Tax-Exempt Municipal Obligations  (Cost $11,400,000)   11,400,000  
  469,935   Total Investments (Cost $474,504,752) (a) (b)   500,586,584  
    Floating Rate Note Obligations Related to Securities Held (−4.1%)    
  (14,080 Notes with interest rates ranging from 3.59% to 3.60% at October 31, 2006 and contractual maturities of collateral ranging from 01/01/19 to 01/01/37 (see Note 1D)‡ (Cost $(14,080,000))       (14,080,000
$ 455,855   Total Net Investments  (Cost $460,424,752)   143.6   486,506,584  
    Other Assets in Excess of Liabilities           2.1       7,351,683  
    Preferred Shares of Beneficial Interest   (45.7   (155,000,000
    Net Assets Applicable to Common Shareholders   100.0 $ 338,858,267  

See Notes to Financial Statements

12




Morgan Stanley Insured Municipal Income Trust

Portfolio of Investments October 31, 2006 continued

Note:    The categories of investments are shown as a percentage of net assets applicable to common shareholders.
AMT Alternative Minimum Tax.
COPs Certificates of Participation.
ETM Escrowed to Maturity.
Prerefunded to call date shown.
†† A portion of this security has been physically segregated in connection with open futures contracts in the amount of $110,000.
Floating rate note obligations related to securities held. The interest rates shown reflect the rates in effect at October 31, 2006.
‡‡ Underlying security related to inverse floaters entered into by the Trust (See Note 1D).
# Currently a zero coupon security; will convert to 5.125% on December 1, 2008.
## Currently a zero coupon security; will convert to 5.30% on June 15, 2012.
* Current coupon of variable rate demand obligation.
** Joint exemption in locations shown.
(a) Securities have been designated as collateral in an amount equal to $23,682,377 in connection with open futures contracts and an open interest rate swap contract.
(b) The aggregate cost for federal income tax purposes is $460,363,689. The aggregate gross and net unrealized appreciation is $26,142,895.
Bond Insurance:
AGC Assured Guaranty Corporation.
Ambac Ambac Assurance Corporation.
FGIC Financial Guaranty Insurance Company.
FSA Financial Security Assurance Inc.
MBIA Municipal Bond Investors Assurance Corporation.
XLCA XL Capital Assurance Inc.

Futures Contracts Open at October 31, 2006:


NUMBER OF
CONTRACTS
LONG/SHORT DESCRIPTION DELIVERY
MONTH, AND YEAR
UNDERLYING FACE
AMOUNT AT VALUE
UNREALIZED
DEPRECIATION
110 Short U.S. Treasury Notes 5 Year  
December 2006
$(11,611,875) $(65,615)
110 Short U.S. Treasury Notes 10 Year
December 2006
(11,904,063) (124,053)
    Total Unrealized Depreciation $(189,668)

Interest Rate Swap Contract Open at October 31, 2006:


COUNTERPARTY NOTIONAL
AMOUNT
(000)
PAYMENTS
MADE BY TRUST
PAYMENTS
RECEIVED BY TRUST
TERMINATION
DATE
UNREALIZED
DEPRECIATION
J.P. Morgan Chase Co. $30,000 Fixed Rate 3.85% Floating Rate BMA
(Bond Market Association)
12/19/16 $(465,502)

See Notes to Financial Statements

13




Morgan Stanley Insured Municipal Income Trust

Financial Statements

Statement of Assets and Liabilities

October 31, 2006


Assets:
Investments in securities, at value (cost $474,504,752) $ 500,586,584  
Cash   123,627  
Interest receivable   8,162,791  
Prepaid expenses and other assets   34,094  
Total Assets    508,907,096  
Liabilities:    
Floating rate note obligations related to securities held   14,080,000  
Unrealized depreciation on an open swap contract   465,502  
Payable for:    
Common shares of beneficial interest repurchased   120,733  
Investment advisory fee   116,655  
Variation margin   84,218  
Administration fee   34,564  
Transfer agent fee   3,174  
Accrued expenses and other payables   143,983  
Total Liabilities    15,048,829  
Preferred shares of beneficial interest (at liquidation value) (1,000,000 shares authorized of
non-participating $.01 par value, 3,100 shares outstanding)
  155,000,000  
Net Assets Applicable to Common Shareholders  $ 338,858,267  
Composition of Net Assets Applicable to Common Shareholders:    
Common shares of beneficial interest (unlimited shares authorized of $.01 par value, 21,435,459 shares         outstanding) $ 310,839,672  
Net unrealized appreciation   25,426,662  
Accumulated undistributed net investment income   1,081,762  
Accumulated undistributed net realized gain   1,510,171  
Net Assets Applicable to Common Shareholders  $ 338,858,267  
Net Asset Value Per Common Share
($338,858,267 divided by 21,435,459 common shares outstanding)
$ 15.81  

See Notes to Financial Statements

14




Morgan Stanley Insured Municipal Income Trust

Financial Statements continued

Statement of Operations

For the year ended October 31, 2006


Net Investment Income:
Interest Income $ 23,306,487  
Expenses    
Investment advisory fee   1,332,858  
Auction commission fees   483,072  
Administration fee   394,921  
Interest and residual trust expenses   249,311  
Professional fees   75,779  
Transfer agent fees and expenses   46,835  
Auction agent fees   43,414  
Shareholder reports and notices   43,212  
Custodian fees   21,494  
Listing fees   19,972  
Trustees’ fees and expenses   10,755  
Other   82,631  
Total Expenses    2,804,254  
Less: expense offset   (21,218
Net Expenses    2,783,036  
Net Investment Income    20,523,451  
Net Realized and Unrealized Gain:    
Net Realized Gain on:    
Investments   1,240,699  
Futures contracts   1,330,171  
Net Realized Gain    2,570,870  
Net Change in Unrealized Appreciation on:    
Investments   7,562,717  
Futures contracts   (1,250,363
Swap contract   (465,502
Net Appreciation    5,846,852  
Net Gain    8,417,722  
Dividends to preferred shareholders from net investment income   (4,690,598
Net Increase $ 24,250,575  

See Notes to Financial Statements

15




Morgan Stanley Insured Municipal Income Trust

Financial Statements continued

Statements of Changes in Net Assets


  FOR THE YEAR
ENDED
OCTOBER 31, 2006
FOR THE YEAR
ENDED
OCTOBER 31, 2005
Increase (Decrease) in Net Assets:
Operations:        
Net investment income $ 20,523,451   $ 21,386,916  
Net realized gain   2,570,870     2,578,463  
Net change in unrealized appreciation/depreciation   5,846,852     (6,758,365
Dividends to preferred shareholders from net investment income   (4,690,598   (2,903,008
Net Increase    24,250,575     14,304,006  
Dividends and Distributions to Common Shareholders from:        
Net investment income   (17,401,436   (18,336,951
Net realized gain   (1,000,186             —            
Total Dividends and Distributions    (18,401,622   (18,336,951
Decrease from transactions in common shares of beneficial interest   (9,946,691   (15,479,394
Net Decrease    (4,097,738   (19,512,339
Net Assets Applicable to Common Shareholders:        
Beginning of period   342,956,005     362,468,344  
End of Period        
(Including accumulated undistributed net investment income of $1,081,762 and $2,650,359, respectively) $ 338,858,267   $ 342,956,005  

See Notes to Financial Statements

16




Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2006

1.   Organization and Accounting Policies

Morgan Stanley Insured Municipal Income Trust (the ‘‘Trust’’) is registered under the Investment Company Act of 1940, as amended, as a diversified, closed-end management investment company. The Trust’s investment objective is to provide current income which is exempt from federal income tax. The Trust was organized as a Massachusetts business trust on March 12, 1992 and commenced operations on February 26, 1993.

The following is a summary of significant accounting policies:

A.   Valuation of Investments — (1) portfolio securities are valued by an outside independent pricing service approved by the Trustees. The pricing service uses both a computerized grid matrix of tax-exempt securities and evaluations by its staff, in each case based on information concerning market transactions and quotations from dealers which reflect the mean between the last reported bid and asked price. The portfolio securities are thus valued by reference to a combination of transactions and quotations for the same or other securities believed to be comparable in quality, coupon, maturity, type of issue, call provisions, trading characteristics and other features deemed to be relevant. The Trustees believe that timely and reliable market quotations are generally not readily available for purposes of valuing tax-exempt securities and that the valuations supplied by the pricing service are more likely to approximate the fair value of such securities; (2) futures are valued at the latest sale price on the commodities exchange on which they trade unless it is determined that such price does not reflect their market value, in which case they will be valued at their fair value as determined in good faith under procedures established by and under the supervision of the Trustees; (3) interest rate swaps are marked-to-market daily based upon quotations from market makers and the change, if any, is recorded as unrealized appreciation or depreciation in the Statement of Operations; and (4) short-term debt securities having a maturity date of more than sixty days at time of purchase are valued on a mark-to-market basis until sixty days prior to maturity and thereafter at amortized cost based on their value on the 61st day. Short-term debt securities having a maturity date of sixty days or less at the time of purchase are valued at amortized cost.

B.   Accounting for Investments — Security transactions are accounted for on the trade date (date the order to buy or sell is executed). Realized gains and losses on security transactions are determined by the identified cost method. Discounts are accreted and premiums are amortized over the life of the respective securities. Interest income is accrued daily.

C.   Futures Contracts — A futures contract is an agreement between two parties to buy and sell financial instruments or contracts based on financial indices at a set price on a future date. Upon entering into such a contract, the Trust is required to pledge to the broker cash, U.S. Government securities or other liquid portfolio securities equal to the minimum initial margin requirements of the applicable futures exchange. Pursuant to the contract, the Trust agrees to receive from or pay to the broker an amount of cash equal to the daily fluctuation in the value of the contract. Such receipts or payments known as variation margin are

17




Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2006 continued

recorded by the Trust as unrealized gains and losses. Upon closing of the contract, the Trust realizes a gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed.

D.   Floating Rate Note Obligations Related to Securities Held — The Trust enters into transactions in which it transfers to Dealer Trusts (‘‘Dealer Trusts’’), fixed rate bonds in exchange for cash and residual interests in the Dealer Trusts’ assets and cash flows, which are in the form of inverse floating rate investments. The Dealer Trusts fund the purchases of the fixed rate bonds by issuing floating rate notes to third parties and allowing the Trust to retain residual interest in the bonds. The Trust enters into shortfall agreements with the Dealer Trusts which commit the Trust to pay the Dealer Trusts, in certain circumstances, the difference between the liquidation value of the fixed rate bonds held by the Dealer Trusts and the liquidation value of the floating rate notes held by third parties, as well as any shortfalls in interest cash flows. The residual interests held by the Trust (inverse floating rate investments) include the right of the Trust (1) to cause the holders of the floating rate notes to tender their notes at par at the next interest rate reset date, and (2) to transfer the municipal bond from the Dealer Trusts to the Trust, thereby collapsing the Dealer Trusts. The Trust accounts for the transfer of bonds to the Dealer Trusts as secured borrowings, with the securities transferred remaining in the Trust’s investment assets, and the related floating rate notes reflected as Trust liabilities under the caption ‘‘floating rate note obligations’’ on the ‘‘Statement of Assets and Liabilities’’. The Trust records the interest income from the fixed rate bonds under the caption ‘‘Interest Income’’ and records the expenses related to floating rate note obligations and any administrative expenses of the dealer trusts under the caption ‘‘Interest and residual trust expenses’’ in the Trust’s ‘‘Statement of Operations’’. The notes issued by the Dealer Trusts have interest rates that reset weekly and the floating rate note holders have the option to tender their notes to the Dealer Trusts for redemption at par at each reset date. At October 31, 2006, Trust investments with a value of $20,838,234 are held by the Dealer Trusts and serve as collateral for the $14,080,000 in floating rate note obligations outstanding at that date. Contractual maturities of the floating rate note obligations and interest rates in effect at October 31, 2006 are presented in the ‘‘Portfolio of Investments’’.

E.   Interest Rate Swaps — Interest rate swaps involve the exchange of commitments to pay and receive interest based on a notional principal amount. Net periodic interest payments to be received or paid are accrued daily and are recorded as realized gains or losses in the Statement of Operations.

F.   Federal Income Tax Policy — It is the Trust’s policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable and nontaxable income to its shareholders. Accordingly, no federal income tax provision is required.

G.   Dividends and Distributions to Shareholders — Dividends and distributions to shareholders are recorded on the ex-dividend date.

H.   Use of Estimates — The preparation of financial statements in accordance with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts and disclosures. Actual results could differ from those estimates.

18




Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2006 continued

2.   Investment Advisory/Administration Agreements

Pursuant to an Investment Advisory Agreement with Morgan Stanley Investment Advisors Inc. (the ‘‘Investment Adviser’’), the Trust pays an advisory fee, calculated weekly and payable monthly, by applying the annual rate of 0.27% to the Trust’s weekly total net assets including preferred shares.

Pursuant to an Administration Agreement with Morgan Stanley Services Company Inc. (the ‘‘Administrator’’), an affiliate of the Investment Adviser, the Trust pays an administration fee, calculated weekly and payable monthly, by applying the annual rate of 0.08% to the Trust’s weekly total net assets including preferred shares.

3.   Security Transactions and Transactions with Affiliates

The cost of purchases and proceeds from sales of portfolio securities, excluding short-term investments, for the year ended October 31, 2006, aggregated $64,008,000 and $78,800,673, respectively.

Morgan Stanley Trust, an affiliate of the Investment Adviser and Administrator, is the Trust’s transfer agent.

The Trust has an unfunded noncontributory defined benefit pension plan covering certain independent Trustees of the Trust who will have served as independent Trustees for at least five years at the time of retirement. Benefits under this plan are based on factors which include years of service and compensation. The Trustees voted to close the plan to new participants and eliminate the future benefits growth due to increases to compensation after July 31, 2003. Aggregate pension costs for the year ended October 31, 2006, included in Trustees’ fees and expenses in the Statement of Operations amounted to $3,985. At October 31, 2006, the Trust had an accrued pension liability of $53,697 which is included in accrued expenses in the Statement of Assets and Liabilities.

The Trust has an unfunded Deferred Compensation Plan (the ‘‘Compensation Plan’’) which allows each independent Trustee to defer payment of all, or a portion, of the fees he or she receives for serving on the Board of Trustees. Each eligible Trustee generally may elect to have the deferred amounts credited with a return equal to the total return on one or more of the Morgan Stanley funds that are offered as investment options under the Compensation Plan. Appreciation/depreciation and distributions received from these investments are recorded with an offsetting increase/decrease in the deferred compensation obligation and do not affect the net asset value of the Trust.

4.   Preferred Shares of Beneficial Interest

The Trust is authorized to issue up to 1,000,000 non-participating preferred shares of beneficial interest having a par value of $.01 per share, in one or more series, with rights as determined by the Trustees, without approval of the common shareholders. The Trust has issued Series 1 through 5 Auction Rate Preferred Shares (‘‘preferred shares’’) which have a liquidation value of $50,000 per share plus the

19




Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2006 continued

redemption premium, if any, plus accumulated but unpaid dividends, whether or not declared, thereon to the date of distribution. The Trust may redeem such shares, in whole or in part, at the original purchase price of $50,000 per share plus accumulated but unpaid dividends, whether or not declared, thereon to the date of redemption.

Dividends, which are cumulative, are reset through auction procedures.


SERIES SHARES* AMOUNT IN
THOUSANDS*
RATE* RESET
     DATE     
RANGE OF
DIVIDEND RATES**
1   400   $ 20,000     3.19   11/06/06   2.30% – 3.75%
2   900     45,000     3.42     11/06/06   2.58   – 4.00  
3   1,000     50,000     3.49     11/06/06   2.24   – 3.75  
4   400     20,000     3.47     11/06/06   1.48   – 3.66  
5   400     20,000     3.43     11/06/06   2.20   – 4.00  
* As of October 31, 2006.
** For the year ended October 31, 2006.

Subsequent to October 31, 2006 and up through December 1, 2006 the Trust paid dividends to each of the Series 1 through 5 at rates ranging from 3.19% to 3.62% in the aggregate amount of $410,373.

The Trust is subject to certain restrictions relating to the preferred shares. Failure to comply with these restrictions could preclude the Trust from declaring any distributions to common shareholders or purchasing common shares and/or could trigger the mandatory redemption of preferred shares at liquidation value.

The preferred shares, which are entitled to one vote per share, generally vote with the common shares but vote separately as a class to elect two Trustees and on any matters affecting the rights of the preferred shares.

5.   Common Shares of Beneficial Interest

Transactions in common shares of beneficial interest were as follows:


  SHARES PAR VALUE CAPITAL
PAID IN
EXCESS OF
PAR VALUE
Balance, October 31, 2004   23,238,838   $ 232,388   $ 336,033,369  
Treasury shares purchased and retired (weighted average discount 11.07%)*   (1,108,679   (11,087   (15,468,307
Balance, October 31, 2005   22,130,159     221,301     320,565,062  
Treasury shares purchased and retired (weighted average discount 7.85%)*   (694,700   (6,947   (9,939,744
Balance, October 31, 2006   21,435,459   $ 214,354   $ 310,625,318  
* The Trustees have voted to retire the shares purchased.

20




Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2006 continued

6.   Dividends to Common Shareholders

On September 26, 2006, the Trust declared the following dividends from net investment income:


AMOUNT
PER SHARE
RECORD
DATE
PAYABLE
DATE
$0.0575   November 3, 2006     November 17, 2006  
$0.0575   December 8, 2006     December 22, 2006  

7.   Expense Offset

The expense offset represents a reduction of the fees and expenses for interest earned on cash balances maintained by the Trust with the transfer agent and custodian.

8.   Purposes of and Risks Relating to Certain Financial Instruments

The Trust may invest a portion of its assets in inverse floating rate instruments, either through outright purchases of inverse floating rate securities or through the transfer of bonds to a dealer trust in exchange for cash and residual interests in the dealer trust. These investments are typically used by the Trust in seeking to enhance the yield of the portfolio. These instruments typically involve greater risks than a fixed rate municipal bond. In particular, these instruments are acquired through leverage or may have leverage embedded in them and therefore involve many of the risks associated with leverage. Leverage is a speculative technique that may expose the Trust to greater risk and increased costs. Leverage may cause the Trust’s net asset value to be more volatile than if it had not been leveraged because leverage tends to magnify the effect of any increases or decreases in the value of the Trust’s portfolio securities. The use of leverage may also cause the Trust to liquidate portfolio positions when it may not be advantageous to do so in order to satisfy its obligations with respect to inverse floating rate instruments.

To hedge against adverse interest rate changes, the Trust may invest in financial futures contracts or municipal bond index futures contracts (‘‘futures contracts’’).

These futures contracts involve elements of market risk in excess of the amount reflected in the Statement of Assets and Liabilities. The Trust bears the risk of an unfavorable change in the value of the underlying securities. Risks may also arise upon entering into these contracts from the potential inability of the counterparties to meet the terms of their contracts.

The Trust may enter into interest rate swaps and may purchase or sell interest rate caps, floors and collars. The Trust expects to enter into these transactions primarily to manage interest rate risk, hedge portfolio positions and preserve a return or spread on a particular investment or portion of its portfolio. The Trust may also enter into these transactions to protect against any increase in the price of securities the Trust anticipates purchasing at a later date. Interest rate swap transactions are subject to market risk, risk of default by the other party to the transaction, risk of imperfect correlation and manager risk. Such risks may exceed the related amounts shown in the Statement of Assets and Liabilities.

21




Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2006 continued

9.   Federal Income Tax Status

The amount of dividends and distributions from net investment income and net realized capital gains are determined in accordance with federal income tax regulations which may differ from generally accepted accounting principles. These ‘‘book/tax’’ differences are either considered temporary or permanent in nature. To the extent these differences are permanent in nature, such amounts are reclassified within the capital accounts based on their federal tax-basis treatment; temporary differences do not require reclassification. Dividends and distributions which exceed net investment income and net realized capital gains for tax purposes are reported as distributions of paid-in-capital.

The tax character of distributions paid was as follows:


  FOR THE YEAR
ENDED
OCTOBER 31, 2006
FOR THE YEAR
ENDED
OCTOBER 31, 2005
Tax-exempt income $ 22,210,053   $ 21,335,959  
Long-term capital gains   1,000,181     —          
Total distributions $ 23,210,234   $ 21,335,959  

As of October 31, 2006, the tax-basis components of accumulated earnings were as follows:


Undistributed tax-exempt income $ 1,075,462                                   
Undistributed long-term gains   1,320,567      
Net accumulated earnings   2,396,029      
Temporary differences   (54,827    
Net unrealized appreciation   25,677,393  
Total accumulated earnings $ 28,018,595      

22




Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2006 continued

As of October 31, 2006, the Trust had temporary book/tax differences primarily attributable to book amortization of discounts on debt securities and mark-to-market of open futures contracts and permanent book/tax differences attributable to tax adjustments on debt securities sold by the Trust. To reflect reclassifications arising from the permanent differences, accumulated undistributed net investment income was charged and accumulated undistributed net realized gain was credited $14.

10.   New Accounting Pronouncements

In July 2006, the Financial Accounting Standards Board (FASB) issued Interpretation 48, Accounting for Uncertainty in Income Taxes – an interpretation of FASB Statement 109 (FIN 48). FIN 48 clarifies the accounting for income taxes by prescribing the minimum recognition threshold a tax position must meet before being recognized in the financial statements. FIN 48 is effective for fiscal years beginning after December 15, 2006. The Trust will adopt FIN 48 for the fiscal year ending 2008 and the impact to the Trust’s financial statements, if any, is currently being assessed.

In addition, in September 2006, Statement of Financial Accounting Standards No. 157, Fair Value Measurements (SFAS 157), was issued and is effective for fiscal years beginning after November 15, 2007. SFAS 157 defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. Management is currently evaluating the impact the adoption of SFAS 157 will have on the Trust’s financial statement disclosures.

23




Morgan Stanley Insured Municipal Income Trust

Financial Highlights

Selected ratios and per share data for a common share of beneficial interest outstanding throughout each period:


  FOR THE YEAR ENDED OCTOBER 31,
  2006 2005 2004 2003 2002
Selected Per Share Data:                    
Net asset value, beginning of period $ 15.50   $ 15.60   $ 15.76   $ 15.67   $ 15.42  
Income (loss) from investment operations:                    
Net investment income*   0.94     0.94     0.95     1.01     1.04  
Net realized and unrealized gain (loss)   0.40     (0.19   0.17     0.03     0.11  
Common share equivalent of dividends paid to preferred shareholders*   (0.22   (0.13   (0.12   (0.10   (0.13
Total income from investment operations   1.12     0.62     1.00     0.94     1.02  
Less dividends and distributions from:                    
Net investment income   (0.80   (0.81   (0.92   (0.90   (0.82
Net realized gain   (0.05       (0.29        
Total dividends and distributions   (0.85   (0.81   (1.21   (0.90   (0.82
Anti-dilutive effect of acquiring treasury shares*   0.04     0.09     0.05     0.05     0.05  
Net asset value, end of period $ 15.81   $ 15.50   $ 15.60   $ 15.76   $ 15.67  
Market value, end of period $ 14.55   $ 13.86   $ 14.09   $ 14.73   $ 14.05  
Total Return†   11.30   4.19   3.91   11.53   5.35
Ratios to Average Net Assets of Common Shareholders:                    
Total expenses (before expense offset)   0.82 % (1)    0.80 % (1)    0.82 % (1)    0.75 % (1)    0.72
Total expenses (before expense offset, exclusive of interest and residual trust expenses)   0.76 % (1)    0.80 % (1)    0.82 % (1)    0.75 % (1)    0.72
Net investment income before preferred stock dividends   6.08   6.01   6.11   6.38   6.82
Preferred stock dividends   1.39   0.81   0.76   0.66   0.87
Net investment income available to common     shareholders   4.69   5.20   5.35   5.72   5.95
Supplemental Data:                    
Net assets applicable to common shareholders, end of period, in thousands   $338,858     $342,956     $362,468     $382,145     $396,360  
Asset coverage on preferred shares at end of period   319   321   334   346   355
Portfolio turnover rate   13   15   17   43   17
* The per share amounts were computed using an average number of common shares outstanding during the period.
Total return is based upon the current market value on the last day of each period reported. Dividends and distributions are assumed to be reinvested at the prices obtained under the Trust’s dividend reinvestment plan. Total return does not reflect brokerage commissions.
(1) Does not reflect the effect of expense offset of 0.01%.

See Notes to Financial Statements

24




Morgan Stanley Insured Municipal Income Trust

Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Trustees of
Morgan Stanley Insured Municipal Income Trust:

We have audited the accompanying statement of assets and liabilities of Morgan Stanley Insured Municipal Income Trust (the ‘‘Trust’’), including the portfolio of investments, as of October 31, 2006, and the related statements of operations for the year then ended and changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Trust’s management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. The Trust is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Trust’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of October 31, 2006, by correspondence with the custodian and brokers. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Morgan Stanley Insured Municipal Income Trust as of October 31, 2006, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended, in conformity with accounting principles generally accepted in the United States of America.

Deloitte & Touche LLP
New York, New York
January 12, 2007

25




Morgan Stanley Insured Municipal Income Trust

Shareholder Voting Results (unaudited)

On October 25, 2006, an annual meeting of the Trust’s shareholders was held for the purpose of voting on the following matters, the results of which were as follows:

Election of Trustees by all Shareholders:


  # of Shares 
  For  Withheld  Abstain 
Frank L. Bowman   17,414,461   174,854 201,091
Kathleen A. Dennis   17,417,206   172,109 201,091
Edwin J. Garn   17,411,346   177,969 201,091
Michael F. Klein   17,418,231   171,084 201,091
W. Allen Reed   17,413,161   176,154 201,091

Election of Trustees by Preferred Shareholders:


  # of Shares 
  For  Withheld  Abstain 
Michael E. Nugent   2,796          

No broker ‘‘non-votes’’ were cast in connection with this proposal. Broker ‘‘non-votes’’ are shares held in street name for which the broker indicates that instructions have not been received from the beneficial owners or other persons entitled to vote and for which the broker does not have discretionary voting authority.

The following Trustees were not standing for reelection at this meeting: Michael Bozic, Wayne E. Hedien, James F. Higgins, Dr. Manuel H. Johnson, Joseph J. Kearns and Fergus Reid.

26




Morgan Stanley Insured Municipal Income Trust

Revised Investment Policy (unaudited)

The Trustees approved the following investment policy:

Interest Rate Transactions.     The Trust may enter into interest rate swaps and may purchase or sell interest rate caps, floors and collars. The Trust expects to enter into these transactions primarily to manage interest rate risk, hedge portfolio positions and preserve a return or spread on a particular investment or portion of its portfolio. The Trust may also enter into these transactions to protect against any increase in the price of securities the Trust anticipates purchasing at a later date. The Trust does not intend to use these transactions as speculative investments and will not enter into interest rate swaps or sell interest rate caps or floors where it does not own or have the right to acquire the underlying securities or other instruments providing the income stream the Trust may be obligated to pay. Interest rate swaps involve the exchange by the Trust with another party of their respective commitments to pay or receive interest, e.g., an exchange of floating rate payments for fixed-rate payments. The purchase of an interest rate cap entitles the purchaser, to the extent that a specified index exceeds a predetermined interest rate, to receive payments of interest on a contractually-based principal amount from the party selling the interest rate cap. The purchase of an interest rate floor entitles the purchaser, to the extent that a specified index falls below a predetermined interest rate, to receive payments of interest on a contractually-based principal amount from the party selling the interest rate floor. An interest rate collar combines the elements of purchasing a cap and selling a floor. The collar protects against an interest rate rise above the maximum amount but foregoes the benefit of an interest rate decline below the minimum amount.

The Trust may enter into interest rate swaps, caps, floors and collars on either an asset-based or liability-based basis, and will usually enter into interest rate swaps on a net basis, i.e., the two payment streams are netted out, with the Trust receiving or paying, as the case may be, only the net amount of the two payments. The net amount of the excess, if any, of the Trust’s obligations over its entitlements with respect to each interest rate swap will be accrued on a daily basis and the Trust segregates an amount of cash and/or liquid securities having an aggregate net asset value at least equal to the accrued excess. If the Trust enters into an interest rate swap on other than a net basis, the Trust would segregate the full amount accrued on a daily basis of the Trust’s obligations with respect to the swap. Interest rate transactions do not constitute senior securities under the 1940 Act when the Trust segregates assets to cover the obligations under the transactions. The Trust will enter into interest rate swap, cap or floor transactions only with counterparties approved by the Trust’s Board of Trustees. The Adviser will monitor the creditworthiness of counterparties to the Trust’s interest rate swap, cap, floor and collar transactions on an ongoing basis. If there is a default by the other party to such a transaction, the Trust will have contractual remedies pursuant to the agreements related to the transaction. To the extent the Trust sells (i.e., writes) caps, floors and collars, it will segregate cash and/or liquid securities having an aggregate net asset value at least equal to the full amount, accrued on a daily basis, of the Trust’s net obligations with respect to the caps, floors or collars. The use of interest rate swaps is a highly specialized activity which involves investment techniques and risks different from those

27




Morgan Stanley Insured Municipal Income Trust

Revised Investment Policy (unaudited) continued

associated with ordinary portfolio securities transactions. If the Adviser is incorrect in its forecasts of the market values, interest rates and other applicable factors, the investment performance of the Trust would diminish compared with what it would have been if these investment techniques were not used. The use of interest rate swaps, caps, collars and floors may also have the effect of shifting the recognition of income between current and future periods.

These transactions do not involve the delivery of securities or other underlying assets or principal. Accordingly, the risk of loss with respect to interest rate swaps is limited to the net amount of interest payments that the Trust is contractually obligated to make. If the other party to an interest rate swap defaults, the Trust’s risk of loss consists of the net amount of interest payments that the Trust contractually is entitled to receive.

28




Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information (unaudited)

Independent Trustees:


Name, Age and Address of
Independent Trustee
Position(s)
Held with
Registrant
Term of
Office and
Length of
Time
Served*
Principal Occupation(s)
During Past 5 Years
Number of Portfolios
in Fund Complex Overseen by Independent
Trustee**
Other Directorships
Held by Independent Trustee
Frank L. Bowman (61)
c/o Kramer Levin Naftalis & Frankel LLP
Counsel to the Independent Trustees
1177 Avenue of the Americas
New York, NY 10036
Trustee Since
August 2006
President and Chief Executive Officer of the Nuclear Energy Institute (policy organization) (since February 2005); Director or Trustee of various Retail Funds and Institutional Funds (since August 2006) formerly variously, Admiral in the U.S. Navy, Director of Naval Nuclear Propulsion Program and Deputy Administrator—Naval Reactors in the National Nuclear Security Administration at the U.S. Department of Energy (1996-2004). Honorary Knight Commander of the Most Excellent Order of the British Empire. 163 Director of the National Energy Foundation, the U.S. Energy Association, the American Council for Capital Formation and the Armed Services YMCA of the USA.
Michael Bozic (65)
c/o Kramer Levin Naftalis & Frankel LLP Counsel to the Independent Trustees
1177 Avenue of the Americas
New York, NY 10036
Trustee
Since
April 1994
Private investor; Chairperson of the Valuation, Insurance and Compliance Committee (since October 2006); Director or Trustee of the Retail Funds (since April 1994) and the Institutional Funds (since July 2003); formerly Chairperson of the Insurance Committee (July 2006-September 2006); Vice Chairman of Kmart Corporation (December 1998-October 2000), Chairman and Chief Executive Officer of Levitz Furniture Corporation (November 1995-November 1998) and President and Chief Executive Officer of Hills Department Stores (May 1991-July 1995); variously Chairman, Chief Executive Officer, President and Chief Operating Officer (1987-1991) of the Sears Merchandise Group of Sears, Roebuck & Co. 173 Director of various business organizations.
Kathleen A. Dennis (53)
c/o Kramer Levin Naftalis & Frankel LLP
Counsel to the Independent Trustees
1177 Avenue of the Americas
New York, NY 10036
Trustee Since
August 2006
President, Cedarwood Associates (mutual fund consulting) (since July 2006); Chairperson of the Money Market and Alternatives Sub-Committee of the Investment Committee (since October 2006) and Director or Trustee of various Retail Funds and Institutional Funds (since August 2006); formerly, Senior Managing Director of Victory Capital Management (1993-2006). 163 None.

29




Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information (unaudited) continued


Name, Age and Address of
Independent Trustee
Position(s)
Held with
Registrant
Term of
Office and
Length of
Time
Served*
Principal Occupation(s)
During Past 5 Years
Number of Portfolios
in Fund Complex Overseen by Independent
Trustee**
Other Directorships
Held by Independent Trustee
Edwin J. Garn (74)
1031 N. Chartwell Court
Salt Lake City, UT 84103
Trustee
Since
January 1993
Consultant; Director or Trustee of the Retail Funds (since January 1993) and the Institutional Funds (since July 2003); Member of the Utah Regional Advisory Board of Pacific Corp. (utility company); formerly Managing Director of Summit Ventures LLC (lobbying and consulting firm) (2000-2004); United States Senator (R-Utah) (1974-1992) and Chairman, Senate Banking Committee (1980-1986), Mayor of Salt Lake City, Utah (1971-1974), Astronaut, Space Shuttle Discovery (April 12-19, 1985), and Vice Chairman, Huntsman Corporation (chemical company). 173 Director of Franklin Covey (time management systems), BMW Bank of North America, Inc. (industrial loan corporation), Escrow Bank USA (industrial loan corporation); United Space Alliance (joint venture between Lockheed Martin and the Boeing Company) and Nuskin Asia Pacific (multilevel marketing); member of the board of various civic and charitable organizations.
Wayne E. Hedien (72)
c/o Kramer Levin Naftalis & Frankel LLP
Counsel to the Independent Trustees
1177 Avenue of the Americas
New York, NY 10036
Trustee
Since
September 1997
Retired; Director or Trustee of the Retail Funds; (Since September 1997) and the Institutional Funds (since July 2003); formerly associated with the Allstate Companies (1966-1994), most recently as Chairman of The Allstate Corporation (March 1993-December 1994) and Chairman and Chief Executive Officer of its wholly-owned subsidiary, Allstate Insurance Company (July 1989- December 1994). 173 Director of The PMI Group Inc. (private mortgage insurance); Trustee and Vice Chairman of The Field Museum of Natural History; director of various other business and charitable organizations.
Dr. Manuel H. Johnson (57)
c/o Johnson Smick Group, Inc.
888 16th Street, N.W.
Suite 740
Washington, D.C. 20006
Trustee
Since
July 1991
Senior Partner, Johnson Smick International, Inc., (consulting firm); Chairperson of the Investment Committee (since October 2006) and Director or Trustee of the Retail Funds (since July 1991) and the Institutional Funds (since July 2003); Co-Chairman and a founder of the Group of Seven Council (G7C), an international economic commission; formerly Chairperson of the Audit Committee (July 1991-September 2006); Vice Chairman of the Board of Governors of the Federal Reserve System and Assistant Secretary of the U.S. Treasury. 173 Director of NVR, Inc. (home construction); Director of KFX Energy; Director of RBS Greenwich Capital Holdings (financial holding company).

30




Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information (unaudited) continued


Name, Age and Address of
Independent Trustee
Position(s)
Held with
Registrant
Term of
Office and
Length of
Time
Served*
Principal Occupation(s)
During Past 5 Years
Number of Portfolios
in Fund Complex Overseen by Independent
Trustee**
Other Directorships
Held by Independent Trustee
Joseph J. Kearns (64)
c/o Kearns & Associates LLC
PMB754
23852 Pacific Coast Highway
Malibu, CA 90265
Trustee
Since
July 2003
President, Kearns & Associates LLC (investment consulting); Chairperson of the Audit Committee (since October 2006) and Director or Trustee of the Retail Funds (since July 2003) and the Institutional Funds (since August 1994); formerly Deputy Chairperson of the Audit Committee (July 2003- September 2006) and Chairperson of the Audit Committee of the Institutional Funds (October 2001-July 2003); formerly CFO of the J. Paul Getty Trust. 174 Director of Electro Rent Corporation (equipment leasing), The Ford Family Foundation, and the UCLA Foundation.
Michael F. Klein (47)
c/o Kramer Levin Naftalis & Frankel LLP
Counsel to the Independent Trustees
1177 Avenue of the Americas
New York, NY 10036
Trustee Since
August 2006
Chief Operating Officer and Managing Director, Aetos Capital, LLC (since March 2000); Chairman of the Fixed-Income Sub-Committee of the Investment Committee (since October 2006) and Director or Trustee (since August 2006) of various Retail Funds and Institutional Funds; formerly Managing Director, Morgan Stanley & Co. Inc. and Morgan Stanley Dean Witter Investment Management, President, Morgan Stanley Institutional Funds (June 1998-March 2000) and Principal, Morgan Stanley & Co. Inc. and Morgan Stanley Dean Witter Investment Management (August 1997- December 1999). 163 Director of certain investment funds managed or sponsored by Aetos Capital LLC.
Michael E. Nugent (70)
c/o Triumph Capital, L.P.
445 Park Avenue
New York, NY 10022
Chairman
of the
Board and
Trustee
Chairman of the Board since
July 2006
and Trustee since
July 1991
General Partner of Triumph Capital, L.P., a private investment partnership; Chairman of the Boards of the Retail Funds and Institutional Funds (since July 2006) and Director or Trustee of the Retail Funds (since July 1991) and the Institutional Funds (since July 2001); formerly Chairperson of the Insurance Committee (until July 2006); Vice President, Bankers Trust Company and BT Capital Corporation (1984-1988). 173 None.

31




Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information (unaudited) continued


Name, Age and Address of
Independent Trustee
Position(s)
Held with
Registrant
Term of
Office and
Length of
Time
Served*
Principal Occupation(s)
During Past 5 Years
Number of Portfolios
in Fund Complex Overseen by Independent
Trustee**
Other Directorships
Held by Independent Trustee
W. Allen Reed (59)
c/o Kramer Levin Naftalis & Frankel LLP
Counsel to the Independent Trustees
1177 Avenue of the Americas
New York, NY 10036
Trustee Since
August 2006
Chairperson of the Equity Sub-Commitee of the Investment Committee (since October 2006) and Director or Trustee (since August 2006) of various Retail Funds and Institutional Funds. President and CEO of General Motors Asset Management; formerly, Chairman and Chief Executive Officer of the GM Trust Bank and Corporate Vice President of General Motors Corporation (August 1994-December 2005). 163 Director of GMAC (financial services), GMAC Insurance Holdings and Temple-Inland Industries (Packaging, Banking and forest products); member of the Board of Executives of the Morgan Stanley Capital International Editorial Board; Director of Legg Mason and Director of various investment fund advisory boards.
Fergus Reid (74)
c/o Lumelite Plastics Corporation
85 Charles Colman Blvd.
Pawling, NY 12564
Trustee
Since
July 2003
Chairman of Lumelite Plastics Corporation; Chairperson of the Governance Committee and Director or Trustee of the Retail Funds (since July 2003) and the Institutional Funds (since June 1992). 174 Trustee and Director of certain investment companies in the JPMorgan Funds complex managed by J.P. Morgan Investment Management Inc.

32




Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information (unaudited) continued

Interested Trustee:


Name, Age and Address of
Interested Trustee
Position(s) Held with Registrant Term of
Office and
Length of
Time
Served*
Principal Occupation(s)
During Past 5 Years
Number of Portfolios
in Fund Complex Overseen by Interested Trustee**
Other Directorships
Held by Interested Trustee
James F. Higgins (58)
c/o Morgan Stanley Trust
Harborside Financial Center
Plaza Two
Jersey City, NJ 07311
Trustee
Since
June 2000
Director or Trustee of the Retail Funds (since June 2000) and the Institutional Funds (since July 2003); Senior Advisor of Morgan Stanley (since August 2000). 173 Director of AXA Financial, Inc. and The Equitable Life Assurance Society of the United States (financial services).
    * This is the earliest date the Trustee began serving the funds advised by Morgan Stanley Investment Advisors Inc. (the ‘‘Investment Adviser’’) (the ‘‘Retail Funds’’) or the funds advised by Morgan Stanley Investment Management Inc. and Morgan Stanley AIP GP LP (the ‘‘Institutional Funds’’).
** The Fund Complex includes all open-end and closed-end funds (including all of their portfolios) advised by the Investment Adviser and any funds that have an investment adviser that is an affiliated person of the Investment Adviser (including, but not limited to, Morgan Stanley Investment Management Inc.) as of October 31, 2006.

33




Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information (unaudited) continued

Executive Officers:


Name, Age and Address of
Executive Officer
Position(s)
Held with
Registrant
    
Term of
Office and
Length of
Time
Served*
Principal Occupation(s) During Past 5 Years
Ronald E. Robison (67)
1221 Avenue of the Americas
New York, NY 10020
President and Principal Executive Officer
President since September 2005 and Principal Executive Officer since May 2003 President (since September 2005) and Principal Executive Officer (since May 2003) of funds in the Fund Complex; President (since September 2005) and Principal Executive Officer (since May 2003) of the Van Kampen Funds; Managing Director, Director and/or Officer of the Investment Adviser and various entities affiliated with the Investment Adviser; Director of Morgan Stanley SICAV (since May 2004). Formerly, Executive Vice President (July 2003 to September 2005) of funds in the Fund Complex and the Van Kampen Funds; President and Director of the Institutional Funds (March 2001 to July 2003); Chief Administrative Officer of the Investment Adivser; Chief Administrative Officer of Morgan Stanley Services Company Inc.
J. David Germany (52)
Morgan Stanley Investment Management Ltd.
25 Cabot Square
Canary Wharf, London
United Kingdom E144QA
Vice President Since February 2006 Managing Director and (since December 2005) Chief Investment Officer – Global Fixed Income of Morgan Stanley Investment Management; Managing Director and Director of Morgan Stanley Investment Management Limited; Vice President of the Retail and Institutional Funds (since February 2006).
Dennis F. Shea (53)
1221 Avenue of the Americas
New York, NY 10020
Vice President Since February 2006 Managing Director and (since February 2006) Chief Investment Officer – Global Equity of Morgan Stanley Investment Management; Vice President of the Retail and Institutional Funds (since February 2006). Formerly, Managing Director and Director of Global Equity Research at Morgan Stanley.
Barry Fink (51)
1221 Avenue of the Americas
New York, NY 10020
Vice President
Since
February 1997
Managing Director of Morgan Stanley Investment Management; Managing Director of the Investment Adviser and various entities affiliated with the Investment Adviser; Vice President of the Retail Funds and (since July 2003) the Institutional Funds. Formerly, Secretary, General Counsel and/or Director of the Investment Adviser and various entities affiliated with the Investment Adviser; Secretary and General Counsel of the Retail Funds.
Amy R. Doberman (44)
1221 Avenue of the Americas
New York, NY 10020
Vice President Since July 2004 Managing Director and General Counsel, U.S. Investment Management of Morgan Stanley Investment Management (since July 2004); Vice President of the Retail Funds and the Institutional Funds (since July 2004); Vice President of the Van Kampen Funds (since August 2004); Secretary (since February 2006) and Managing Director (since July 2004) of the Investment Adviser and various entities affiliated with the Investment Adviser. Formerly, Managing Director and General Counsel – Americas, UBS Global Asset Management (July 2000 to July 2004).
Carsten Otto (42)
1221 Avenue of the Americas
New York, NY 10020
Chief Compliance
Officer
Since October
2004
Managing Director and U.S. Director of Compliance for Morgan Stanley Investment Management (since October 2004); Managing Director and Chief Compliance Officer of Morgan Stanley Investment Management. Formerly, Assistant Secretary and Assistant General Counsel of the Retail Funds.
Stefanie V. Chang Yu (39)
1221 Avenue of the Americas
New York, NY 10020
Vice President
Since December 1997
Executive Director of the Investment Adviser and various entities affiliated with the Investment Adviser; Vice President of the Retail Funds (since July 2002) and the Institutional Funds (since December 1997). Formerly, Secretary of various entities affiliated with the Investment Adviser.

34




Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information (unaudited) continued


Name, Age and Address of
Executive Officer
Position(s)
Held with
Registrant
    
Term of
Office and
Length of
Time
Served*
Principal Occupation(s) During Past 5 Years
Francis J. Smith (41)
c/o Morgan Stanley Trust
Harborside Financial Center
Plaza Two
Jersey City, NJ 07311
Treasurer and Chief Financial Officer
Treasurer since July 2003 and Chief Financial Officer since September 2002 Executive Director of the Investment Adviser and various entities affiliated with the Investment Adviser; Treasurer and Chief Financial Officer of the Retail Funds (since July 2003). Formerly, Vice President of the Retail Funds (September 2002 to July 2003).
Mary E. Mullin (39)
1221 Avenue of the Americas
New York, NY 10020
Secretary
Since June 1999
Executive Director of the Investment Adviser and various entities affiliated with the Investment Adviser; Secretary of the Retail Funds (since July 2003) and the Institutional Funds (since June 1999).
    * This is the earliest date the Officer began serving the Retail Funds or the Institutional Funds.

In accordance with Section 303A.12(a) of the New York Stock Exchange Listed Company Manual, the Trust’s Annual CEO Certification certifying as to compliance with NYSE’s Corporate Governance Listing Standards was submitted to the Exchange on November 14, 2006.

The Trust’s Principal Executive Officer and Principal Financial Officer Certifications required by Section 302 of the Sarbanes-Oxley Act of 2002 were filed with the Trust’s N-CSR and are available on the Securities and Exchange Commission’s Web site at http://www.sec.gov.

    

2006 Federal Tax Notice (unaudited)

During the fiscal year ended October 31, 2006, the Trust paid the following per share amounts from tax-exempt income: $0.81 to common shareholders, $1,567 to Series 1 preferred shareholders, $1,599 to Series 2 preferred shareholders, $1,379 to Series 3 preferred shareholders, $1,494 to Series 4 preferred shareholders, and $1,568 to Series 5 preferred shareholders.

For the year ended October 31, 2006, the Trust paid the following per share amounts from long-term capital gains: $0.04 to common shareholders, $51 to Series 1 preferred shareholders, $42 to Series 2 preferred shareholders, $50 to Series 3 preferred shareholders, $33 to Series 4 preferred shareholders, and $45 to Series 5 preferred shareholders.

35




Trustees

Frank L. Bowman
Michael Bozic
Kathleen A. Dennis
Edwin J. Garn
Wayne E. Hedien
James F. Higgins
Dr. Manuel H. Johnson
Joseph J. Kearns
Michael F. Klein
Michael E. Nugent
W. Allen Reed
Fergus Reid

Officers

Michael E. Nugent
Chairman of the Board

Ronald E. Robison
President and Principal Executive Officer

J. David Germany
Vice President

Dennis F. Shea
Vice President

Barry Fink
Vice President

Amy R. Doberman
Vice President

Carsten Otto
Chief Compliance Officer

Stefanie V. Chang Yu
Vice President

Francis J. Smith
Treasurer and Chief Financial Officer

Mary E. Mullin
Secretary

Transfer Agent

Morgan Stanley Trust
Harborside Financial Center, Plaza Two
Jersey City, New Jersey 07311

Independent Registered Public Accounting Firm

Deloitte & Touche LLP
Two World Financial Center
New York, New York 10281

Investment Adviser

Morgan Stanley Investment Advisors Inc.
1221 Avenue of the Americas
New York, New York 10020

Investments and services offered through Morgan Stanley DW Inc., member SIPC.

© 2006 Morgan Stanley



RA06-01120P-Y10/06-IIMRPT-ANR
MORGAN STANLEY FUNDS


Morgan Stanley
Insured Municipal Income Trust






Annual Report
October 31, 2006
















Item 2. Code of Ethics.

(a) The Trust has adopted a code of ethics (the "Code of Ethics") that applies
to its principal executive officer, principal financial officer, principal
accounting officer or controller, or persons performing similar functions,
regardless of whether these individuals are employed by the Trust or a third
party.

(b)  No information need be disclosed pursuant to this paragraph.

(c)  Not applicable.

(d)  Not applicable.

(e)  Not applicable.

(f)

     (1)  The Trust's Code of Ethics is attached hereto as Exhibit 12 A.

     (2)  Not applicable.

     (3)  Not applicable.

Item 3. Audit Committee Financial Expert.

The Trust's Board of Trustees has determined that Joseph J. Kearns, an
"independent" Trustee, is an "audit committee financial expert" serving on its
audit committee. Under applicable securities laws, a person who is determined to
be an audit committee financial expert will not be deemed an "expert" for any
purpose, including without limitation for the purposes of Section 11 of the
Securities Act of 1933, as a result of being designated or identified as an
audit committee financial expert. The designation or identification of a person
as an audit committee financial expert does not impose on such person any
duties, obligations, or liabilities that are greater than the duties,
obligations, and liabilities imposed on such person as a member of the audit
committee and Board of Trustees in the absence of such designation or
identification.


                                        2



Item 4.  Principal Accountant Fees and Services.

(a)(b)(c)(d) and (g). Based on fees billed for the periods shown:

2006

                              REGISTRANT    COVERED ENTITIES(1)
                              ----------    -------------------
AUDIT FEES.................     $31,200             N/A
NON-AUDIT FEES
   AUDIT-RELATED FEES......     $ 6,096(2)          $5,217,590(2)
   TAX FEES................     $ 4,900(3)          $1,472,895(4)
   ALL OTHER FEES..........     $     -             $        -
TOTAL NON-AUDIT FEES.......     $10,996             $6,690,485
TOTAL......................     $42,196             $6,690,485

2005

                              REGISTRANT    COVERED ENTITIES(1)
                              ----------    -------------------
AUDIT FEES.................     $30,448             N/A
NON-AUDIT FEES
   AUDIT-RELATED FEES......     $ 6,105(2)          $3,215,745(2)
   TAX FEES................     $ 5,026(3)          $   24,000(4)
   ALL OTHER FEES..........     $     -             $        -
TOTAL NON-AUDIT FEES.......     $11,131             $3,239,749
TOTAL......................     $41,579             $3,239,749

N/A- Not applicable, as not required by Item 4.

(1)  Covered Entities include the Adviser (excluding sub-advisors) and any
     entity controlling, controlled by or under common control with the Adviser
     that provides ongoing services to the Registrant.

(2)  Audit-Related Fees represent assurance and related services provided that
     are reasonably related to the performance of the audit of the financial
     statements of the Covered Entities' and funds advised by the Adviser or its
     affiliates, specifically data verification and agreed-upon procedures
     related to asset securitizations and agreed-upon procedures engagements.

(3)  Tax Fees represent tax compliance, tax planning and tax advice services
     provided in connection with the preparation and review of the Registrant's
     tax returns.

(4)  Tax Fees represent tax compliance, tax planning and tax advice services
     provided in connection with the review of Covered Entities' tax returns.



                                        3



(e)(1) The audit committee's pre-approval policies and procedures are as
follows:

                                                                      APPENDIX A
                                 AUDIT COMMITTEE
                          AUDIT AND NON-AUDIT SERVICES
                       PRE-APPROVAL POLICY AND PROCEDURES
                                     OF THE
                  MORGAN STANLEY RETAIL AND INSTITUTIONAL FUNDS

                    AS ADOPTED AND AMENDED JULY 23, 2004,(1)

     1.   STATEMENT OF PRINCIPLES

The Audit Committee of the Board is required to review and, in its sole
discretion, pre-approve all Covered Services to be provided by the Independent
Auditors to the Fund and Covered Entities in order to assure that services
performed by the Independent Auditors do not impair the auditor's independence
from the Fund.

The SEC has issued rules specifying the types of services that an independent
auditor may not provide to its audit client, as well as the audit committee's
administration of the engagement of the independent auditor. The SEC's rules
establish two different approaches to pre-approving services, which the SEC
considers to be equally valid. Proposed services either: may be pre-approved
without consideration of specific case-by-case services by the Audit Committee
("general pre-approval"); or require the specific pre-approval of the Audit
Committee or its delegate ("specific pre-approval"). The Audit Committee
believes that the combination of these two approaches in this Policy will result
in an effective and efficient procedure to pre-approve services performed by the
Independent Auditors. As set forth in this Policy, unless a type of service has
received general pre-approval, it will require specific pre-approval by the
Audit Committee (or by any member of the Audit Committee to which pre-approval
authority has been delegated) if it is to be provided by the Independent
Auditors. Any proposed services exceeding pre-approved cost levels or budgeted
amounts will also require specific pre-approval by the Audit Committee.

The appendices to this Policy describe the Audit, Audit-related, Tax and All
Other services that have the general pre-approval of the Audit Committee. The
term of any general pre-approval is 12 months from the date of pre-approval,
unless the Audit Committee considers and provides a different period and states
otherwise. The Audit Committee will annually review and pre-approve the services
that may be provided by the Independent Auditors without obtaining specific
pre-approval from the Audit Committee. The Audit Committee will add to or
subtract from the list of general pre-approved services from time to time, based
on subsequent determinations.

----------
(1)  This Audit Committee Audit and Non-Audit Services Pre-Approval Policy and
     Procedures (the "Policy"), adopted as of the date above, supersedes and
     replaces all prior versions that may have been adopted from time to time.


                                       4



The purpose of this Policy is to set forth the policy and procedures by which
the Audit Committee intends to fulfill its responsibilities. It does not
delegate the Audit Committee's responsibilities to pre-approve services
performed by the Independent Auditors to management.

The Fund's Independent Auditors have reviewed this Policy and believes that
implementation of the Policy will not adversely affect the Independent Auditors'
independence.

     2.   DELEGATION

As provided in the Act and the SEC's rules, the Audit Committee may delegate
either type of pre-approval authority to one or more of its members. The member
to whom such authority is delegated must report, for informational purposes
only, any pre-approval decisions to the Audit Committee at its next scheduled
meeting.

     3.   AUDIT SERVICES

The annual Audit services engagement terms and fees are subject to the specific
pre-approval of the Audit Committee. Audit services include the annual financial
statement audit and other procedures required to be performed by the Independent
Auditors to be able to form an opinion on the Fund's financial statements. These
other procedures include information systems and procedural reviews and testing
performed in order to understand and place reliance on the systems of internal
control, and consultations relating to the audit. The Audit Committee will
approve, if necessary, any changes in terms, conditions and fees resulting from
changes in audit scope, Fund structure or other items.

In addition to the annual Audit services engagement approved by the Audit
Committee, the Audit Committee may grant general pre-approval to other Audit
services, which are those services that only the Independent Auditors reasonably
can provide. Other Audit services may include statutory audits and services
associated with SEC registration statements (on Forms N-1A, N-2, N-3, N-4,
etc.), periodic reports and other documents filed with the SEC or other
documents issued in connection with securities offerings.

The Audit Committee has pre-approved the Audit services in Appendix B.1. All
other Audit services not listed in Appendix B.1 must be specifically
pre-approved by the Audit Committee (or by any member of the Audit Committee to
which pre-approval has been delegated).

     4.   AUDIT-RELATED SERVICES

Audit-related services are assurance and related services that are reasonably
related to the performance of the audit or review of the Fund's financial
statements and, to the extent they are Covered Services, the Covered Entities or
that are traditionally performed by the Independent Auditors. Because the Audit
Committee believes that the provision of Audit-related services does not impair
the independence of the auditor and is consistent with the SEC's rules on
auditor independence, the Audit Committee may grant general pre-approval to
Audit-related services. Audit-related services include, among others, accounting
consultations related to accounting, financial reporting or disclosure matters


                                       5



not classified as "Audit services"; assistance with understanding and
implementing new accounting and financial reporting guidance from rulemaking
authorities; agreed-upon or expanded audit procedures related to accounting
and/or billing records required to respond to or comply with financial,
accounting or regulatory reporting matters; and assistance with internal control
reporting requirements under Forms N-SAR and/or N-CSR.

The Audit Committee has pre-approved the Audit-related services in Appendix B.2.
All other Audit-related services not listed in Appendix B.2 must be specifically
pre-approved by the Audit Committee (or by any member of the Audit Committee to
which pre-approval has been delegated).

     5.   TAX SERVICES

The Audit Committee believes that the Independent Auditors can provide Tax
services to the Fund and, to the extent they are Covered Services, the Covered
Entities, such as tax compliance, tax planning and tax advice without impairing
the auditor's independence, and the SEC has stated that the Independent Auditors
may provide such services.

Pursuant to the preceding paragraph, the Audit Committee has pre-approved the
Tax Services in Appendix B.3. All Tax services in Appendix B.3 must be
specifically pre-approved by the Audit Committee (or by any member of the Audit
Committee to which pre-approval has been delegated).

     6.   ALL OTHER SERVICES

The Audit Committee believes, based on the SEC's rules prohibiting the
Independent Auditors from providing specific non-audit services, that other
types of non-audit services are permitted. Accordingly, the Audit Committee
believes it may grant general pre-approval to those permissible non-audit
services classified as All Other services that it believes are routine and
recurring services, would not impair the independence of the auditor and are
consistent with the SEC's rules on auditor independence.

The Audit Committee has pre-approved the All Other services in Appendix B.4.
Permissible All Other services not listed in Appendix B.4 must be specifically
pre-approved by the Audit Committee (or by any member of the Audit Committee to
which pre-approval has been delegated).

     7.   PRE-APPROVAL FEE LEVELS OR BUDGETED AMOUNTS

Pre-approval fee levels or budgeted amounts for all services to be provided by
the Independent Auditors will be established annually by the Audit Committee.
Any proposed services exceeding these levels or amounts will require specific
pre-approval by the Audit Committee. The Audit Committee is mindful of the
overall relationship of fees for audit and non-audit services in determining
whether to pre-approve any such services.

     8.   PROCEDURES

All requests or applications for services to be provided by the Independent
Auditors that do not require specific approval by the Audit Committee will be
submitted to the Fund's Chief Financial Officer and must include a detailed
description of the services to be


                                       6



rendered. The Fund's Chief Financial Officer will determine whether such
services are included within the list of services that have received the general
pre-approval of the Audit Committee. The Audit Committee will be informed on a
timely basis of any such services rendered by the Independent Auditors. Requests
or applications to provide services that require specific approval by the Audit
Committee will be submitted to the Audit Committee by both the Independent
Auditors and the Fund's Chief Financial Officer, and must include a joint
statement as to whether, in their view, the request or application is consistent
with the SEC's rules on auditor independence.

The Audit Committee has designated the Fund's Chief Financial Officer to monitor
the performance of all services provided by the Independent Auditors and to
determine whether such services are in compliance with this Policy. The Fund's
Chief Financial Officer will report to the Audit Committee on a periodic basis
on the results of its monitoring. Both the Fund's Chief Financial Officer and
management will immediately report to the chairman of the Audit Committee any
breach of this Policy that comes to the attention of the Fund's Chief Financial
Officer or any member of management.

     9.   ADDITIONAL REQUIREMENTS

The Audit Committee has determined to take additional measures on an annual
basis to meet its responsibility to oversee the work of the Independent Auditors
and to assure the auditor's independence from the Fund, such as reviewing a
formal written statement from the Independent Auditors delineating all
relationships between the Independent Auditors and the Fund, consistent with
Independence Standards Board No. 1, and discussing with the Independent Auditors
its methods and procedures for ensuring independence.

     10.  COVERED ENTITIES

Covered Entities include the Fund's investment adviser(s) and any entity
controlling, controlled by or under common control with the Fund's investment
adviser(s) that provides ongoing services to the Fund(s). Beginning with
non-audit service contracts entered into on or after May 6, 2003, the Fund's
audit committee must pre-approve non-audit services provided not only to the
Fund but also to the Covered Entities if the engagements relate directly to the
operations and financial reporting of the Fund. This list of Covered Entities
would include:

          Morgan Stanley Retail Funds

          Morgan Stanley Investment Advisors Inc.
          Morgan Stanley & Co. Incorporated
          Morgan Stanley DW Inc.
          Morgan Stanley Investment Management Inc.
          Morgan Stanley Investment Management Limited
          Morgan Stanley Investment Management Private Limited
          Morgan Stanley Asset & Investment Trust Management Co., Limited
          Morgan Stanley Investment Management Company
          Van Kampen Asset Management
          Morgan Stanley Services Company, Inc.
          Morgan Stanley Distributors Inc.
          Morgan Stanley Trust FSB


                                       7



          Morgan Stanley Institutional Funds
          Morgan Stanley Investment Management Inc.
          Morgan Stanley Investment Advisors Inc.
          Morgan Stanley Investment Management Limited
          Morgan Stanley Investment Management Private Limited
          Morgan Stanley Asset & Investment Trust Management Co., Limited
          Morgan Stanley Investment Management Company
          Morgan Stanley & Co. Incorporated
          Morgan Stanley Distribution, Inc.
          Morgan Stanley AIP GP LP
          Morgan Stanley Alternative Investment Partners LP

(e)(2) Beginning with non-audit service contracts entered into on or after May
6, 2003, the audit committee also is required to pre-approve services to Covered
Entities to the extent that the services are determined to have a direct impact
on the operations or financial reporting of the Registrant. 100% of such
services were pre-approved by the audit committee pursuant to the Audit
Committee's pre-approval policies and procedures (attached hereto).

(f)  Not applicable.

(g)  See table above.

(h) The audit committee of the Board of Trustees has considered whether the
provision of services other than audit services performed by the auditors to the
Registrant and Covered Entities is compatible with maintaining the auditors'
independence in performing audit services.

Item 5. Audit Committee of Listed Registrants.

(a) The Fund has a separately-designated standing audit committee established in
accordance with Section 3(a)(58)(A) of the Exchange Act whose members are: Frank
Bowman, Wayne Hedien, Joseph Kearns, Michael Nugent and Allen Reed.

(b) Not applicable.

Item 6.

See Item 1.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End
Management Investment Companies.


                                       8



The Fund/Trust invests in exclusively non-voting securities and therefore this
item is not applicable.

Item 8. Portfolio Managers of Closed-End Management Investment Companies

                                 FUND MANAGEMENT

PORTFOLIO MANAGEMENT. As of the date of this report, the Trust is managed by
members of the Municipal Fixed Income team. The team consists of portfolio
managers and analysts. Current members of the team jointly and primarily
responsible for the day-to-day management of the Trust's portfolio and the
overall execution of the strategy of the Trust are James F. Willison, a Managing
Director of the Investment Adviser, Joseph R. Arcieri, an Executive Director of
the Investment Adviser and Robert W. Wimmel, a Vice President of the Investment
Adviser.

Mr. Willison has been associated with the Investment Adviser in an investment
management capacity since January 1980 and began managing the Trust at
inception. Mr. Arcieri has been associated with the Investment Adviser in an
investment management capacity since January 1986 and began managing the Trust
in February 1997. Mr. Wimmel has been associated with the Investment Adviser in
an investment management capacity since August 1996 and began managing the Trust
in January 2002.

The composition of the team may change from time to time.

OTHER ACCOUNTS MANAGED BY THE PORTFOLIO MANAGERS

The following information is as of October 31, 2006:

Mr. Willison managed 22 mutual funds with a total of approximately $7.4 billion
in assets; no pooled investment vehicles other than mutual funds; and no other
accounts.

Mr. Arcieri managed 19 mutual funds with a total of approximately $5.7 billion
in assets; no pooled investment vehicles other than mutual funds; and no other
accounts.

Mr. Wimmel managed 25 mutual funds with a total of approximately $12.6 billion
in assets; no pooled investment vehicles other than mutual funds; and no other
accounts.

Because the portfolio managers manage assets for other investment companies,
pooled investment vehicles, and/or other accounts (including institutional
clients, pension plans and certain high net worth individuals), there may be an
incentive to favor one client over another resulting in conflicts of interest.
For instance, the Investment Adviser may receive fees from certain accounts that
are higher than the fee it receives from the Trust, or it may receive a
performance-based fee on certain accounts. In those instances, the


                                        9



portfolio manager may have an incentive to favor the higher and/or
performance-based fee accounts over the Trust. The Investment Adviser has
adopted trade allocation and other policies and procedures that it believes are
reasonably designed to address these and other conflicts of interest.

PORTFOLIO MANAGER COMPENSATION STRUCTURE

Portfolio managers receive a combination of base compensation and discretionary
compensation, comprised of a cash bonus and several deferred compensation
programs described below. The methodology used to determine portfolio manager
compensation is applied across all funds/accounts managed by the portfolio
manager.

BASE SALARY COMPENSATION. Generally, portfolio managers receive base salary
compensation based on the level of their position with the Investment Adviser.

DISCRETIONARY COMPENSATION. In addition to base compensation, portfolio managers
may receive discretionary compensation.

Discretionary compensation can include:

- Cash Bonus.

- Morgan Stanley's Equity Incentive Compensation Program (EICP) awards -- a
mandatory program that defers a portion of discretionary year-end compensation
into restricted stock units or other awards based on Morgan Stanley common stock
that are subject to vesting and other conditions.

- Investment Management Alignment Plan (IMAP) awards -- a mandatory program that
defers a portion of discretionary year-end compensation and notionally invests
it in designated Funds advised by the Investment Adviser or its affiliates. The
award is subject to vesting and other conditions. Portfolio managers must
notionally invest a minimum of 25% to a maximum of 100% of the IMAP deferral
into a combination of the designated open-end mutual funds they manage that are
included in the IMAP fund menu, which may or may not include the Trust.

- Voluntary Deferred Compensation Plans -- voluntary programs that permit
certain employees to elect to defer a portion of their discretionary year-end
compensation and directly or notionally invest the deferred amount: (1) across a
range of designated investment Funds, including Funds advised by the Investment
Adviser or its affiliates; and/or (2) in Morgan Stanley stock units.

Several factors determine discretionary compensation, which can vary by
portfolio management team and circumstances. In order of relative importance,
these factors include:


                                       10



- Investment performance. A portfolio manager's compensation is linked to the
pre-tax investment performance of the funds/accounts managed by the portfolio
manager. Investment performance is calculated for one-, three- and five-year
periods measured against a fund's/account's primary benchmark, indices and/or
peer groups where applicable. Generally, the greatest weight is placed on the
three- and five-year periods.

- Revenues generated by the investment companies, pooled investment vehicles and
other accounts managed by the portfolio manager.

- Contribution to the business objectives of the Investment Adviser.

- The dollar amount of assets managed by the portfolio manager.

- Market compensation survey research by independent third parties.

- Other qualitative factors, such as contributions to client objectives.

- Performance of Morgan Stanley and Morgan Stanley Investment Management, and
the overall performance of the investment team(s) of which the portfolio manager
is a member.

SECURITIES OWNERSHIP OF PORTFOLIO MANAGERS

As of October 31, 2006, the portfolio managers did not own any shares of the
Trust.


                                       11



Item 9. Closed-End Fund Repurchases

                    REGISTRANT PURCHASE OF EQUITY SECURITIES



                                                                                          (d) Maximum Number
                                                                                            (or Approximate
                                                                    (c) Total Number of    Dollar Value) of
                                                                     Shares (or Units)     Shares (or Units)
                        (a) Total Number of    (b) Average Price   Purchased as Part of     that May Yet Be
                         Shares (or Units)    Paid per Share (or    Publicly Announced    Purchased Under the
Period                       Purchased               Unit)           Plans or Programs     Plans or Programs
---------------------   -------------------   ------------------   --------------------   -------------------

November 1, 2005 --
November 30, 2005              51,000               $13.74                  N/A                   N/A
December 1, 2005 --
December 31, 2005              67,100               $13.76                  N/A                   N/A
January 1, 2006 --
January 31, 2006               99,100               $14.22                  N/A                   N/A
February 1, 2006 --
February 28, 2006              79,800               $14.47                  N/A                   N/A
March 1, 2006 --
March 31, 2006                106,200               $14.33                  N/A                   N/A
April 1, 2006 --
April 30, 2006                 68,000               $14.59                  N/A                   N/A
May 1, 2006 ---
May 31, 2006                   67,200               $14.50                  N/A                   N/A
June 1, 2006 ---
June 30, 2006                  43,600               $14.41                  N/A                   N/A
July 1, 2006 ---
July 31, 2006                  28,900               $14.49                  N/A                   N/A
August 1, 2006 ---
August 31, 2006                 8,100               $14.76                  N/A                   N/A
September 1, 2006 ---
September 30, 2006             17,700               $14.82                  N/A                   N/A
October 1, 2006 ---
October 31, 2006               58,000               $14.52                  N/A                   N/A
                              -------               ------                 -----                 -----
Total                         694,700               $14.38                  N/A                   N/A
                              =======               ======                 =====                 =====



                                       12



Item 10. Submission of Matters to a Vote of Security Holders

Not applicable.

Item 11. Controls and Procedures

a) The Trust's principal executive officer and principal financial officer have
concluded that the Trust's disclosure controls and procedures are sufficient to
provide reasonable assurance that information required to be disclosed by the
Trust in this Form N-CSR was recorded, processed, summarized and reported within
the time periods specified in the Securities and Exchange Commission's ("SEC")
rules and forms or by the SEC staff, based upon such officers' evaluation of
these controls and procedures as of January 12, which is a date within 90 days
of the filing date of the report. The Trust's principal executive officer and
principal financial officer have also concluded that the Trust's disclosure
controls and procedures designed to ensure that information required to be
disclosed by the Trust in this Form N-CSR is accumulated and communicated to the
Trust's management, including its principal executive officer and principal
financial officer, as appropriate to allow timely decisions regarding required
disclosure were effective.

Management of the Trust has determined that as of and prior to October 31, 2006,
the Trust's fiscal year end, the Trust had a deficiency in its internal control
over financial reporting related to the review, analysis and determination of
whether certain transfers of municipal securities qualified for sale accounting
under the provisions of Statement of Financial Accounting Standards No. 140
"Accounting for Transfers and Servicing of Financial Assets and Extinguishments
of Liabilities." As a result, the Trust's independent registered public
accountants advised the Trust that this control deficiency represented a
material weakness in internal control over financial reporting as of October 31,
2006. Since October 31, 2006, and prior to the issuance of the Trust's annual
report, management has revised its disclosure controls and procedures and its
internal control over financial reporting in order to improve the controls'
effectiveness to ensure that transactions in transfers of municipal securities
are accounted for properly.

Management notes that other investment companies investing in similar
investments over the same time periods had been accounting for such investments
in a similar manner as the Trust. Accordingly, other investment companies are
also concluding that there was a material weakness in their internal control
over financial reporting of such investments. The changes in the Trust's
financial statements did not impact the net asset value of the Trust's shares or
the Trust's total return for any period.

(b) There were no changes in the Trust's internal control over financial
reporting that occurred during the second fiscal quarter of the period covered
by this report that have materially affected, or are reasonably likely to
materially affect, the Trust's internal control over financial reporting.
However, as discussed above, subsequent to October 31, 2006, the Trust's
internal control over financial reporting was revised.

Item 12. Exhibits

(a) The Code of Ethics for Principal Executive and Senior Financial Officers is
attached hereto.

(b) A separate certification for each principal executive officer and principal
financial officer of the registrant are attached hereto as part of EX-99.CERT.


                                       13



                                   SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.

Morgan Stanley Insured Municipal Income Trust


/s/ Ronald E. Robison
-------------------------------------
Ronald E. Robison
Principal Executive Officer
January 12, 2007

     Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, this report has been signed by the following
persons on behalf of the registrant and in the capacities and on the dates
indicated.


/s/ Ronald E. Robison
-------------------------------------
Ronald E. Robison
Principal Executive Officer
January 12, 2007


/s/ Francis Smith
-------------------------------------
Francis Smith
Principal Financial Officer
January 12, 2007


                                       14



                                                                    EXHIBIT 12 A

      CODE OF ETHICS FOR PRINCIPAL EXECUTIVE AND SENIOR FINANCIAL OFFICERS
            ADOPTED SEPTEMBER 28, 2004, AS AMENDED SEPTEMBER 20, 2005

I.   This Code of Ethics (the "Code") for the investment companies within the
     Morgan Stanley complex identified in Exhibit A (collectively, "Funds" and
     each, a "Fund") applies to each Fund's Principal Executive Officer,
     President, Principal Financial Officer and Treasurer (or persons performing
     similar functions) ("Covered Officers" each of whom are set forth in
     Exhibit B) for the purpose of promoting:

          o    honest and ethical conduct, including the ethical handling of
               actual or apparent conflicts of interest between personal and
               professional relationships.

          o    full, fair, accurate, timely and understandable disclosure in
               reports and documents that a company files with, or submits to,
               the Securities and Exchange Commission ("SEC") and in other
               public communications made by the Fund;

          o    compliance with applicable laws and governmental rules and
               regulations;

          o    prompt internal reporting of violations of the Code to an
               appropriate person or persons identified in the Code; and

          o    accountability for adherence to the Code.

               Each Covered Officer should adhere to a high standard of business
ethics and should be sensitive to situations that may give rise to actual as
well as apparent conflicts of interest. Any question about the application of
the Code should be referred to the General Counsel or his/her designee (who is
set forth in Exhibit C).

II.  COVERED OFFICERS SHOULD HANDLE ETHICALLY ACTUAL AND APPARENT CONFLICTS OF
     INTEREST

     OVERVIEW. A "conflict of interest" occurs when a Covered Officer's private
interest interferes, or appears to interfere, with the interests of, or his
service to, the Fund. For example, a conflict of interest would arise if a
Covered Officer, or a member of his family, receives improper personal benefits
as a result of his position with the Fund.

     Certain conflicts of interest arise out of the relationships between
Covered Officers and the Fund and already are subject to conflict of interest
provisions in the


                                       15



Investment Company Act of 1940 ("Investment Company Act") and the Investment
Advisers Act of 1940 ("Investment Advisers Act"). For example, Covered Officers
may not individually engage in certain transactions (such as the purchase or
sale of securities or other property) with the Fund because of their status as
"affiliated persons" (as defined in the Investment Company Act) of the Fund. The
Fund's and its investment adviser's compliance programs and procedures are
designed to prevent, or identify and correct, violations of these provisions.
This Code does not, and is not intended to, repeat or replace these programs and
procedures, and such conflicts fall outside the parameters of this Code, unless
or until the General Counsel determines that any violation of such programs and
procedures is also a violation of this Code.

     Although typically not presenting an opportunity for improper personal
benefit, conflicts may arise from, or as a result of, the contractual
relationship between the Fund and its investment adviser of which the Covered
Officers are also officers or employees. As a result, this Code recognizes that
the Covered Officers will, in the normal course of their duties (whether
formally for the Fund or for the investment adviser, or for both), be involved
in establishing policies and implementing decisions that will have different
effects on the Fund and its investment adviser. The participation of the Covered
Officers in such activities is inherent in the contractual relationship between
the Fund and the investment adviser and is consistent with the performance by
the Covered Officers of their duties as officers of the Fund. Thus, if performed
in conformity with the provisions of the Investment Company Act and the
Investment Advisers Act, such activities will be deemed to have been handled
ethically. In addition, it is recognized by the Funds' Boards of
Directors/Trustees ("Boards") that the Covered Officers may also be officers or
employees of one or more other investment companies covered by this or other
codes.

     Other conflicts of interest are covered by the Code, even if such conflicts
of interest are not subject to provisions in the Investment Company Act and the
Investment Advisers Act. The following list provides examples of conflicts of
interest under the Code, but Covered Officers should keep in mind that these
examples are not exhaustive. The overarching principle is that the personal
interest of a Covered Officer should not be placed improperly before the
interest of the Fund.

     Each Covered Officer must not:

          o    use his personal influence or personal relationships improperly
               to influence investment decisions or financial reporting by the
               Fund whereby the Covered Officer would benefit personally
               (directly or indirectly);

          o    cause the Fund to take action, or fail to take action, for the
               individual personal benefit of the Covered Officer rather than
               the benefit of the Fund; or

          o    use material non-public knowledge of portfolio transactions made
               or contemplated for, or actions proposed to be taken by, the Fund
               to trade personally or cause others to trade personally in
               contemplation of the market effect of such transactions.


                                       16



     Each Covered Officer must, at the time of signing this Code, report to the
General Counsel all affiliations or significant business relationships outside
the Morgan Stanley complex and must update the report annually.

     Conflict of interest situations should always be approved by the General
Counsel and communicated to the relevant Fund or Fund's Board. Any activity or
relationship that would present such a conflict for a Covered Officer would
likely also present a conflict for the Covered Officer if an immediate member of
the Covered Officer's family living in the same household engages in such an
activity or has such a relationship. Examples of these include:

          o    service or significant business relationships as a director on
               the board of any public or private company;

          o    accepting directly or indirectly, anything of value, including
               gifts and gratuities in excess of $100 per year from any person
               or entity with which the Fund has current or prospective business
               dealings, not including occasional meals or tickets for theatre
               or sporting events or other similar entertainment; provided it is
               business-related, reasonable in cost, appropriate as to time and
               place, and not so frequent as to raise any question of
               impropriety;

          o    any ownership interest in, or any consulting or employment
               relationship with, any of the Fund's service providers, other
               than its investment adviser, principal underwriter, or any
               affiliated person thereof; and

          o    a direct or indirect financial interest in commissions,
               transaction charges or spreads paid by the Fund for effecting
               portfolio transactions or for selling or redeeming shares other
               than an interest arising from the Covered Officer's employment,
               such as compensation or equity ownership.

III. DISCLOSURE AND COMPLIANCE

          o    Each Covered Officer should familiarize himself/herself with the
               disclosure and compliance requirements generally applicable to
               the Funds;

          o    each Covered Officer must not knowingly misrepresent, or cause
               others to misrepresent, facts about the Fund to others, whether
               within or outside the Fund, including to the Fund's
               Directors/Trustees and auditors, or to governmental regulators
               and self-regulatory organizations;

          o    each Covered Officer should, to the extent appropriate within his
               area of responsibility, consult with other officers and employees
               of the Funds and their investment advisers with the goal of
               promoting full, fair, accurate, timely and understandable
               disclosure in the reports and documents the Funds file with, or
               submit to, the SEC and in other public communications made by the
               Funds; and


                                       17



          o    it is the responsibility of each Covered Officer to promote
               compliance with the standards and restrictions imposed by
               applicable laws, rules and regulations.

IV.  REPORTING AND ACCOUNTABILITY

          Each Covered Officer must:

          o    upon adoption of the Code (thereafter as applicable, upon
               becoming a Covered Officer), affirm in writing to the Boards that
               he has received, read and understands the Code;

          o    annually thereafter affirm to the Boards that he has complied
               with the requirements of the Code;

          o    not retaliate against any other Covered Officer, other officer or
               any employee of the Funds or their affiliated persons for reports
               of potential violations that are made in good faith; and

          o    notify the General Counsel promptly if he/she knows or suspects
               of any violation of this Code. Failure to do so is itself a
               violation of this Code.

          The General Counsel is responsible for applying this Code to specific
situations in which questions are presented under it and has the authority to
interpret this Code in any particular situation. However, any waivers(2) sought
by a Covered Officer must be considered by the Board of the relevant Fund or
Funds.

          The Funds will follow these procedures in investigating and enforcing
this Code:

          o    the General Counsel will take all appropriate action to
               investigate any potential violations reported to him;

          o    if, after such investigation, the General Counsel believes that
               no violation has occurred, the General Counsel is not required to
               take any further action;

          o    any matter that the General Counsel believes is a violation will
               be reported to the relevant Fund's Audit Committee;

          o    if the directors/trustees/managing general partners who are not
               "interested persons" as defined by the Investment Company Act
               (the "Independent Directors/Trustees/Managing General Partners")
               of the relevant Fund concur that a violation has occurred, they
               will consider appropriate action,

----------
(2)  Item 2 of Form N-CSR defines "waiver" as "the approval by the registrant of
     a material departure from a provision of the code of ethics."


                                       18



               which may include review of, and appropriate modifications to,
               applicable policies and procedures; notification to appropriate
               personnel of the investment adviser or its board; or a
               recommendation to dismiss the Covered Officer or other
               appropriate disciplinary actions;

          o    the Independent Directors/Trustees/Managing General Partners of
               the relevant Fund will be responsible for granting waivers of
               this Code, as appropriate; and

          o    any changes to or waivers of this Code will, to the extent
               required, be disclosed as provided by SEC rules.

V.   OTHER POLICIES AND PROCEDURES

          This Code shall be the sole code of ethics adopted by the Funds for
purposes of Section 406 of the Sarbanes-Oxley Act of 2002 and the rules and
forms applicable to registered investment companies thereunder. Insofar as other
policies or procedures of the Funds, the Funds' investment advisers, principal
underwriters, or other service providers govern or purport to govern the
behavior or activities of the Covered Officers who are subject to this Code,
they are superseded by this Code to the extent that they overlap or conflict
with the provisions of this Code unless any provision of this Code conflicts
with any applicable federal or state law, in which case the requirements of such
law will govern. The Funds' and their investment advisers' and principal
underwriters' codes of ethics under Rule 17j-1 under the Investment Company Act
and Morgan Stanley's Code of Ethics are separate requirements applying to the
Covered Officers and others, and are not part of this Code.

VI.  AMENDMENTS

          Any amendments to this Code, other than amendments to Exhibits A, B or
C, must be approved or ratified by a majority vote of the Board of each Fund,
including a majority of Independent Directors/Trustees/Managing General
Partners.

VII. CONFIDENTIALITY

          All reports and records prepared or maintained pursuant to this Code
will be considered confidential and shall be maintained and protected
accordingly. Except as otherwise required by law or this Code, such matters
shall not be disclosed to anyone other than the Independent
Directors/Trustees/Managing General Partners of the relevant Fund or Funds and
their counsel, the relevant Fund or Funds and their counsel and the relevant
investment adviser and its counsel.


                                       19



VIII. INTERNAL USE

     The Code is intended solely for the internal use by the Funds and does not
constitute an admission, by or on behalf of any Fund, as to any fact,
circumstance, or legal conclusion

I have read and understand the terms of the above Code. I recognize the
responsibilities and obligations incurred by me as a result of my being subject
to the Code. I hereby agree to abide by the above Code.


-------------------------

Date:
     --------------------


                                       20



                                    EXHIBIT A

                                    FUND LIST

                                       AT
                               SEPTEMBER 30, 2006

RETAIL FUNDS

OPEN-END RETAIL FUNDS

     TAXABLE MONEY MARKET FUNDS

1.   Active Assets Government Securities Trust ("AA Government")

2.   Active Assets Institutional Government Securities Trust ("AA Institutional
     Government")

3.   Active Assets Institutional Money Trust ("AA Institutional Money")

4.   Active Assets Money Trust ("AA Money")

5.   Morgan Stanley Liquid Asset Fund Inc. ("Liquid Asset")

6.   Morgan Stanley U.S. Government Money Market Trust ("Government Money")

     TAX-EXEMPT MONEY MARKET FUNDS

7.   Active Assets California Tax-Free Trust ("AA California")

8.   Active Assets Tax-Free Trust ("AA Tax-Free")

9.   Morgan Stanley California Tax-Free Daily Income Trust ("California Tax-Free
     Daily")

10.  Morgan Stanley New York Municipal Money Market Trust ("New York Money")

11.  Morgan Stanley Tax-Free Daily Income Trust ("Tax-Free Daily")

     EQUITY FUNDS

12.  Morgan Stanley Aggressive Equity Fund ("Aggressive Equity")+

13.  Morgan Stanley Allocator Fund ("Allocator Fund")+

14.  Morgan Stanley Capital Opportunities Trust ("Capital Opportunities")+

15.  Morgan Stanley Developing Growth Securities Trust ("Developing Growth")+

16.  Morgan Stanley Dividend Growth Securities Inc. ("Dividend Growth")+

17.  Morgan Stanley Equally-Weighted S&P 500 Fund ("Equally-Weighted S&P 500")+

18.  Morgan Stanley European Equity Fund Inc. ("European Equity")+

19.  Morgan Stanley Financial Services Trust ("Financial Services")+

20.  Morgan Stanley Focus Growth Fund ("Focus Growth")+

21.  Morgan Stanley Fundamental Value Fund ("Fundamental Value")+


                                       21



22.  Morgan Stanley Global Advantage Fund ("Global Advantage")+

23.  Morgan Stanley Global Dividend Growth Securities ("Global Dividend
     Growth")+

24.  Morgan Stanley Global Utilities Fund ("Global Utilities")+

25.  Morgan Stanley Growth Fund ("Growth Fund")+

26.  Morgan Stanley Health Sciences Trust ("Health Sciences")+

27.  Morgan Stanley Institutional Strategies Fund ("Institutional Strategies")+

28.  Morgan Stanley International Fund ("International Fund")+

29.  Morgan Stanley International SmallCap Fund ("International SmallCap")+

30.  Morgan Stanley International Value Equity Fund ("International Value")+

31.  Morgan Stanley Japan Fund ("Japan Fund")+

32.  Morgan Stanley Mid-Cap Value Fund (Mid-Cap Value")+

33.  Morgan Stanley Multi-Asset Class Fund ("Multi-Asset Class")+

34.  Morgan Stanley Nasdaq-100 Index Fund ("Nasdaq-100")+

35.  Morgan Stanley Natural Resource Development Securities Inc. ("Natural
     Resource")+

36.  Morgan Stanley Pacific Growth Fund Inc. ("Pacific Growth")+

37.  Morgan Stanley Real Estate Fund ("Real Estate")+

38.  Morgan Stanley Small-Mid Special Value Fund (Small-Mid Special Value")+

39.  Morgan Stanley S&P 500 Index Fund ("S&P500 Index")+

40.  Morgan Stanley Special Growth Fund ("Special Growth")+

41.  Morgan Stanley Special Value Fund ("Special Value")+

42.  Morgan Stanley Technology Fund ("Technology Fund")+

43.  Morgan Stanley Total Market Index Fund ("Total Market Index")+

44.  Morgan Stanley Total Return Trust ("Total Return")+

45.  Morgan Stanley Utilities Fund ("Utilities Fund")+

46.  Morgan Stanley Value Fund ("Value Fund")+

     BALANCED FUNDS

47.  Morgan Stanley Balanced Growth Fund ("Balanced")+

     ASSET ALLOCATION FUND

48.  Morgan Stanley Strategist Fund ("Strategist Fund")+

     TAXABLE FIXED-INCOME FUNDS

49.  Morgan Stanley Convertible Securities Trust ("Convertible Securities")+

50.  Morgan Stanley Flexible Income Trust ("Flexible Income")+

51.  Morgan Stanley Income Trust ("Income Trust")+

52.  Morgan Stanley High Yield Securities Inc. ("High Yield Securities")+

53.  Morgan Stanley Limited Duration Fund ("Limited Duration Fund")

54.  Morgan Stanley Limited Duration U.S. Treasury Trust ("Limited Duration
     Treasury")

55.  Morgan Stanley Mortgage Securities Trust ("Mortgage Securities")+

56.  Morgan Stanley U.S. Government Securities Trust ("Government Securities")+


                                       22



     TAX-EXEMPT FIXED-INCOME FUNDS

57.  Morgan Stanley California Tax-Free Income Fund ("California Tax-Free")+

58.  Morgan Stanley Limited Term Municipal Trust ("Limited Term Municipal")

59.  Morgan Stanley New York Tax-Free Income Fund ("New York Tax-Free")+

60.  Morgan Stanley Tax-Exempt Securities Trust ("Tax-Exempt Securities")+

     SPECIAL PURPOSE FUNDS

61.  Morgan Stanley Select Dimensions Investment Series ("Select Dimensions")

          o    Balanced Growth Portfolio

          o    Capital Opportunities Portfolio

          o    Developing Growth Portfolio

          o    Dividend Growth Portfolio

          o    Equally-Weighted S&P 500 Portfolio

          o    Flexible Income Portfolio

          o    Focus Growth Portfolio

          o    Global Equity Portfolio

          o    Growth Portfolio

          o    Money Market Portfolio

          o    Utilities Portfolio

62.  Morgan Stanley Variable Investment Series ("Variable Investment")

          o    Aggressive Equity Portfolio

          o    Dividend Growth Portfolio

          o    Equity Portfolio

          o    European Equity Portfolio

          o    Global Advantage Portfolio

          o    Global Dividend Growth Portfolio

          o    High Yield Portfolio

          o    Income Builder Portfolio

          o    Limited Duration Portfolio

          o    Money Market Portfolio

          o    Income Plus Portfolio

          o    S&P 500 Index Portfolio

          o    Strategist Portfolio

          o    Utilities Portfolio

CLOSED-END RETAIL FUNDS

     TAXABLE FIXED-INCOME CLOSED-END FUNDS

63.  Morgan Stanley Government Income Trust ("Government Income")

64.  Morgan Stanley Income Securities Inc. ("Income Securities")


                                       23



65.  Morgan Stanley Prime Income Trust ("Prime Income")

     TAX-EXEMPT FIXED-INCOME CLOSED-END FUNDS

66.  Morgan Stanley California Insured Municipal Income Trust ("California
     Insured Municipal")

67.  Morgan Stanley California Quality Municipal Securities ("California Quality
     Municipal")

68.  Morgan Stanley Insured California Municipal Securities ("Insured California
     Securities")

69.  Morgan Stanley Insured Municipal Bond Trust ("Insured Municipal Bond")

70.  Morgan Stanley Insured Municipal Income Trust ("Insured Municipal Income")

71.  Morgan Stanley Insured Municipal Securities ("Insured Municipal
     Securities")

72.  Morgan Stanley Insured Municipal Trust ("Insured Municipal Trust")

73.  Morgan Stanley Municipal Income Opportunities Trust ("Municipal
     Opportunities")

74.  Morgan Stanley Municipal Income Opportunities Trust II ("Municipal
     Opportunities II")

75.  Morgan Stanley Municipal Income Opportunities Trust III ("Municipal
     Opportunities III")

76.  Morgan Stanley Municipal Premium Income Trust ("Municipal Premium")

77.  Morgan Stanley New York Quality Municipal Securities ("New York Quality
     Municipal")

78.  Morgan Stanley Quality Municipal Income Trust ("Quality Municipal Income")

79.  Morgan Stanley Quality Municipal Investment Trust ("Quality Municipal
     Investment")

80.  Morgan Stanley Quality Municipal Securities ("Quality Municipal
     Securities")

+-   Denotes Retail Multi-Class Fund

                               INSTITUTIONAL FUNDS

OPEN-END INSTITUTIONAL FUNDS

1.   Morgan Stanley Institutional Fund, Inc. ("Institutional Fund Inc.")

     Active Portfolios:

          o    Active International Allocation Portfolio

          o    Emerging Markets Portfolio

          o    Emerging Markets Debt Portfolio

          o    Focus Equity Portfolio

          o    Global Franchise Portfolio

          o    Global Real Estate Portfolio

          o    Global Value Equity Portfolio

          o    International Equity Portfolio

          o    International Growth Equity Portfolio


                                       24



          o    International Magnum Portfolio

          o    International Real Estate Portfolio

          o    International Small Cap Portfolio

          o    Large Cap Relative Value Portfolio

          o    Money Market Portfolio

          o    Municipal Money Market Portfolio

          o    Small Company Growth Portfolio

          o    Systematic Active Large Cap Core Portfolio

          o    Systematic Active Small Cap Core Portfolio

          o    Systematic Active Small Cap Growth Portfolio

          o    Systematic Active Small Cap Value Portfolio

          o    U.S. Large Cap Growth Portfolio

          o    U.S. Real Estate Portfolio

     Inactive Portfolios*:

          o    China Growth Portfolio

          o    Gold Portfolio

          o    Large Cap Relative Value Portfolio

          o    MicroCap Portfolio

          o    Mortgage-Backed Securities Portfolio

          o    Municipal Bond Portfolio

          o    U.S. Equity Plus Portfolio

2.   Morgan Stanley Institutional Fund Trust ("Institutional Fund Trust")

     Active Portfolios:

          o    Advisory Portfolio

          o    Advisory Foreign Fixed Income II Portfolio

          o    Advisory Foreign Fixed Income Portfolio

          o    Balanced Portfolio

          o    Core Fixed Income Portfolio

          o    Core Plus Fixed Income Portfolio

          o    Equity Portfolio

          o    Equity Plus Portfolio

          o    High Yield Portfolio

          o    Intermediate Duration Portfolio

          o    International Fixed Income Portfolio

          o    Investment Grade Fixed Income Portfolio

          o    Limited Duration Portfolio

----------
*    Have not commenced or have ceased operations


                                       25



          o    Long Duration Fixed Income Portfolio

          o    Mid-Cap Growth Portfolio

          o    Municipal Portfolio

          o    U.S. Mid-Cap Value Portfolio

          o    U.S. Small-Cap Value Portfolio

          o    Value Portfolio

     Inactive Portfolios*:

          o    Balanced Plus Portfolio

          o    Growth Portfolio

          o    Investment Grade Credit Advisory Portfolio

          o    Mortgage Advisory Portfolio

          o    New York Municipal Portfolio

          o    Targeted Duration Portfolio

          o    Value II Portfolio

3.   The Universal Institutional Funds, Inc. ("Universal Funds")

     Active Portfolios:

          o    Core Plus Fixed Income Portfolio

          o    Emerging Markets Debt Portfolio

          o    Emerging Markets Equity Portfolio

          o    Equity and Income Portfolio

          o    Equity Growth Portfolio

          o    Global Franchise Portfolio

          o    Global Real Estate Portfolio

          o    Global Value Equity Portfolio

          o    High Yield Portfolio

          o    International Growth Equity Portfolio

          o    International Magnum Portfolio

          o    Mid-Cap Growth Portfolio

          o    Small Company Growth Portfolio

          o    U.S. Mid-Cap Value Portfolio

          o    U.S. Real Estate Portfolio

          o    Value Portfolio

     Inactive Portfolios*:

          o    Balanced Portfolio

          o    Capital Preservation Portfolio

          o    Core Equity Portfolio

          o    International Fixed Income Portfolio

----------


                                       26



          o    Investment Grade Fixed Income Portfolio

          o    Latin American Portfolio

          o    Multi-Asset Class Portfolio

          o    Targeted Duration Portfolio

4.   Morgan Stanley Institutional Liquidity Funds ("Liquidity Funds")

     Active Portfolios:

          o    Government Portfolio

          o    Money Market Portfolio

          o    Prime Portfolio

          o    Tax-Exempt Portfolio

          o    Treasury Portfolio

     Inactive Portfolios*:

          o    Government Securities Portfolio

          o    Treasury Securities Portfolio

CLOSED-END INSTITUTIONAL FUNDS

5.   Morgan Stanley Asia-Pacific Fund, Inc. ("Asia-Pacific Fund")

6.   Morgan Stanley Eastern Europe Fund, Inc. ("Eastern Europe")

7.   Morgan Stanley Emerging Markets Debt Fund, Inc. ("Emerging Markets Debt")

8.   Morgan Stanley Emerging Markets Fund, Inc. ("Emerging Markets Fund")

9.   Morgan Stanley Global Opportunity Bond Fund, Inc. ("Global Opportunity")

10.  Morgan Stanley High Yield Fund, Inc. ("High Yield Fund")

11.  The Latin American Discovery Fund, Inc. ("Latin American Discovery")

12   The Malaysia Fund, Inc. ("Malaysia Fund")

13.  The Thai Fund, Inc. ("Thai Fund")

14.  The Turkish Investment Fund, Inc. ("Turkish Investment")

15.  India Investment Fund ("India Investment")

CLOSED-END FUND OF HEDGE FUNDS

16.  Morgan Stanley Institutional Fund of Hedge Funds ("Fund of Hedge Funds")

                                 IN REGISTRATION

MORGAN STANLEY RETAIL FUNDS

1.   Morgan Stanley American Franchise Fund

----------
*    Have not commenced or have ceased operations


                                       27



FUNDS OF HEDGE FUNDS

1.   Morgan Stanley Absolute Return Fund

2.   Morgan Stanley Institutional Fund of Hedge Funds II


                                       28



                                    EXHIBIT B

                               INSTITUTIONAL FUNDS
                                COVERED OFFICERS

          Ronald E. Robison -President and Principal Executive Officer
            James W. Garrett - Chief Financial Officer and Treasurer

                                  RETAIL FUNDS
                                COVERED OFFICERS

          Ronald E. Robison -President and Principal Executive Officer
              Francis Smith - Chief Financial Officer and Treasurer

                   MORGAN STANLEY INDIA INVESTMENT FUND, INC.
                                COVERED OFFICERS

          Ronald E. Robison - President and Principal Executive Officer
            James W. Garrett - Chief Financial Officer and Treasurer


                                       29



                                    EXHIBIT C

                                 GENERAL COUNSEL

                                 Amy R. Doberman

                                       30



                                                                   EXHIBIT 12 B1

                  CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

                                 CERTIFICATIONS

I, Ronald E. Robison, certify that:

1.   I have reviewed this report on Form N-CSR of Morgan Stanley Insured
     Municipal Income Trust;

2.   Based on my knowledge, this report does not contain any untrue statement of
     a material fact or omit to state a material fact necessary to make the
     statements made, in light of the circumstances under which such statements
     were made, not misleading with respect to the period covered by this
     report;

3.   Based on my knowledge, the financial statements and other financial
     information included in this report, fairly present in all material
     respects the financial condition, results of operations, changes in net
     assets, and cash flows (if the financial statements are required to include
     a statement of cash flows) of the registrant as of, and for, the periods
     presented in this report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Rule 30a-3(c) under the Investment Company Act of 1940) and internal
     control over financial reporting (as defined in Rule 30a-3(d) under the
     Investment Company Act of 1940) for the registrant and have:

a)   designed such disclosure controls and procedures, or caused such disclosure
     controls and procedures to be designed under our supervision, to ensure
     that material information relating to the registrant, including its
     consolidated subsidiaries, is made known to us by others within those
     entities, particularly during the period in which this report is being
     prepared;

b)   designed such internal control over financial reporting, or caused such
     internal control over financial reporting to be designed under our
     supervision, to provide reasonable assurance regarding the reliability of
     financial reporting and the preparation of financial statements for
     external purposes in accordance with generally accepted accounting
     principles;

c)   evaluated the effectiveness of the registrant's disclosure controls and
     procedures and presented in this report our conclusions about the
     effectiveness of the disclosure controls and procedures, as of a date
     within 90 days prior to the filing date of this report based on such
     evaluation; and

d)   disclosed in this report any change in the registrant's internal control
     over financial reporting that occurred during the second fiscal quarter of
     the period covered by this report that has materially affected, or is
     reasonably likely to materially affect, the registrant's internal control
     over financial reporting; and

5.   The registrant's other certifying officer(s) and I have disclosed to the
     registrant's auditors and the audit committee of the registrant's board of
     directors (or persons performing the equivalent functions):


                                       31



a)   all significant deficiencies and material weaknesses in the design or
     operation of internal control over financial reporting which are reasonably
     likely to adversely affect the registrant's ability to record, process,
     summarize, and report financial information; and

b)   any fraud, whether or not material, that involves management or other
     employees who have a significant role in the registrant's internal controls
     over financial reporting.

Date: January 12, 2007


                                        /s/ Ronald E. Robison
                                        ----------------------------------------
                                        Ronald E. Robison
                                        Principal Executive Officer


                                       32



                                                                   EXHIBIT 12 B2

                  CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

                                 CERTIFICATIONS

I, Francis Smith, certify that:

1.   I have reviewed this report on Form N-CSR of Morgan Stanley Insured
     Municipal Income Trust;

2.   Based on my knowledge, this report does not contain any untrue statement of
     a material fact or omit to state a material fact necessary to make the
     statements made, in light of the circumstances under which such statements
     were made, not misleading with respect to the period covered by this
     report;

3.   Based on my knowledge, the financial statements and other financial
     information included in this report, fairly present in all material
     respects the financial condition, results of operations, changes in net
     assets, and cash flows (if the financial statements are required to include
     a statement of cash flows) of the registrant as of, and for, the periods
     presented in this report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Rule 30a-3(c) under the Investment Company Act of 1940) and internal
     control over financial reporting (as defined in Rule 30a-3(d) under the
     Investment Company Act of 1940) for the registrant and have:

a)   designed such disclosure controls and procedures, or caused such disclosure
     controls and procedures to be designed under our supervision, to ensure
     that material information relating to the registrant, including its
     consolidated subsidiaries, is made known to us by others within those
     entities, particularly during the period in which this report is being
     prepared;

b)   designed such internal control over financial reporting, or caused such
     internal control over financial reporting to be designed under our
     supervision, to provide reasonable assurance regarding the reliability of
     financial reporting and the preparation of financial statements for
     external purposes in accordance with generally accepted accounting
     principles;

c)   evaluated the effectiveness of the registrant's disclosure controls and
     procedures and presented in this report our conclusions about the
     effectiveness of the disclosure controls and procedures, as of a date
     within 90 days prior to the filing date of this report based on such
     evaluation; and

d)   disclosed in this report any change in the registrant's internal control
     over financial reporting that occurred during the second fiscal quarter of
     the period covered by this period that has materially affected, or is
     reasonably likely to materially affect, the registrant's internal control
     over financial reporting; and

5.   The registrant's other certifying officer(s) and I have disclosed to the
     registrant's auditors and the audit committee of the registrant's board of
     directors (or persons performing the equivalent functions):


                                       33



a)   all significant deficiencies and material weaknesses in the design or
     operation of internal control over financial reporting which are reasonably
     likely to adversely affect the registrant's ability to record, process,
     summarize, and report financial information; and

b)   any fraud, whether or not material, that involves management or other
     employees who have a significant role in the registrant's internal controls
     over financial reporting.


Date: January 12, 2007                     /s/ Francis Smith
                                           -------------------------------------
                                           Francis Smith
                                           Principal Financial Officer


                                       34



                            SECTION 906 CERTIFICATION

                Certification Pursuant to 18 U.S.C. Section 1350,
                             As Adopted Pursuant to
                  Section 906 of the Sarbanes-Oxley Act of 2002

Morgan Stanley Insured Municipal Income Trust

     In connection with the Report on Form N-CSR (the "Report") of the
above-named issuer for the period ended October 31, 2006 that is accompanied by
this certification, the undersigned hereby certifies that:

1.   The Report fully complies with the requirements of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Issuer.


Date: January 12, 2007                     /s/ Ronald E. Robison
                                           -------------------------------------
                                           Ronald E. Robison
                                           Principal Executive Officer

A signed original of this written statement required by Section 906 has been
provided to Morgan Stanley Insured Municipal Income Trust and will be retained
by Morgan Stanley Morgan Stanley Insured Municipal Income Trust and furnished to
the Securities and Exchange Commission or its staff upon request.


                                       35



                            SECTION 906 CERTIFICATION

                Certification Pursuant to 18 U.S.C. Section 1350,
                             As Adopted Pursuant to
                  Section 906 of the Sarbanes-Oxley Act of 2002

Morgan Stanley Insured Municipal Income Trust

     In connection with the Report on Form N-CSR (the "Report") of the
above-named issuer for the period ended October 31, 2006 that is accompanied by
this certification, the undersigned hereby certifies that:

1.   The Report fully complies with the requirements of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Issuer.


Date: January 12, 2007                     /s/ Francis Smith
                                           -------------------------------------
                                           Francis Smith
                                           Principal Financial Officer

A signed original of this written statement required by Section 906 has been
provided to Morgan Stanley Insured Municipal Income Trust and will be retained
by Morgan Stanley Insured Municipal Income Trust and furnished to the Securities
and Exchange Commission or its staff upon request.


                                       36