SUPPLEMENT DATED JUNE 12, 2006
         TO THE CURRENT STATEMENTS OF ADDITIONAL INFORMATION ("SAI"s) OF
     THE ING EQUITY TRUST, ING FUNDS TRUST, ING INVESTMENT FUNDS, INC., ING
          MAYFLOWER TRUST, ING MUTUAL FUNDS, ING SENIOR INCOME FUND AND
                      ING PRIME RATE TRUST (THE "REGISTRANTS")

Effective May 25, 2006, Mr. Richard A. Wedemeyer retired from the Boards of
Directors/Trustees ("Boards") of the ING Funds and has been removed from the
Boards' committees.

Effective April 28, 2006, Mr. Thomas J. McInerney resigned from the Board of
the ING Funds and was removed from the Boards' committees.

Effective immediately, the third and sixth paragraphs of the section
entitled, "Dealer Commissions and Other Incentives" for all of the above
Registrants' SAIs, except ING Equity Trust, ING Funds Trust - ING Institutional
Prime Money Market Fund, ING Investment Funds, Inc., ING Prime Rate Trust and
ING Senior Income Fund are herby deleted and replaced with the following:

       Also, the Distributor will pay out of its own assets a commission of
       1.00% of the amount invested for purchases of Class A shares of less
       than $1 million by qualified retirement plans with 50 or more
       participants.

       In connection with qualified retirement plans that invest $1 million
       or more in Class A shares of the Funds, the Distributor will pay dealer
       compensation of 1.00% of the purchase price of the shares to the dealer
       from its own resources at the time of the initial investment.

Effective immediately, the third paragraph of the section entitled, "Dealer
Commissions and Other Incentives" for ING Equity Trust and ING Investment
Funds, Inc. is herby deleted and replaced with the following:

       Also, the Distributor will pay out of its own assets a commission of
       1.00% of the amount invested for purchases of Class A shares of less
       than $1 million by qualified retirement plans with 50 or more
       participants. In connection with qualified retirement plans that invest
       $1 million or more in Class A shares of the Funds, the Distributor will
       pay dealer compensation of 1.00% of the purchase price of the shares to
       the dealer from its own resources at the time of the initial investment.



               PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE