-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 StPUKhZaKN5wYAHobnX2k/BpVCnjEpOFMNFtLOyBMT88C0vTD77i+MMVLrjrWze4
 4kegAzcd1wx77Ai/U9VWhg==

<SEC-DOCUMENT>0000021847-03-000139.txt : 20030403
<SEC-HEADER>0000021847-03-000139.hdr.sgml : 20030403
<ACCEPTANCE-DATETIME>20030403150316
ACCESSION NUMBER:		0000021847-03-000139
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20030403
EFFECTIVENESS DATE:		20030403

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LIBERTY ACORN TRUST
		CENTRAL INDEX KEY:			0000002110
		IRS NUMBER:				362692100
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-34223
		FILM NUMBER:		03638425

	BUSINESS ADDRESS:	
		STREET 1:		227 W MONROE STE 3000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3126349200

	MAIL ADDRESS:	
		STREET 1:		227 W MONROE STE 3000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ACORN FUND INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ACORN INVESTMENT TRUST
		DATE OF NAME CHANGE:	19940204
</SEC-HEADER>
<DOCUMENT>
<TYPE>497
<SEQUENCE>1
<FILENAME>april_2.txt
<DESCRIPTION>SUPPLEMENT
<TEXT>


                           LIBERTY ACORN INTERNATIONAL

                                 Class Z Shares

                         Supplement dated April 2, 2003
                to Prospectus, as supplemented, dated May 1, 2002


Effective March 4, 2003, the Fund may waive the 2% redemption fee for 401(k)
plans that are in the process of liquidating their Fund investments.


<PAGE>


                           LIBERTY ACORN FOREIGN FORTY

                                 Class Z Shares

                         Supplement dated April 2, 2003
                to Prospectus, as supplemented, dated May 1, 2002


Effective March 4, 2003, the Fund may waive the 2% redemption fee for 401(k)
plans that are in the process of liquidating their Fund investments.


<PAGE>


                               LIBERTY ACORN FUND
                           LIBERTY ACORN INTERNATIONAL
                                LIBERTY ACORN USA
                              LIBERTY ACORN TWENTY
                           LIBERTY ACORN FOREIGN FORTY

                                 Class Z Shares

                         Supplement dated April 2, 2003
                to Prospectus, as supplemented, dated May 1, 2002


Effective March 4, 2003, each of Liberty Acorn International and Liberty Acorn
Foreign Forty may waive the 2% redemption fee for 401(k) plans that are in the
process of liquidating their investments in the Fund.


<PAGE>


                               LIBERTY ACORN FUND
                           LIBERTY ACORN INTERNATIONAL
                                LIBERTY ACORN USA
                              LIBERTY ACORN TWENTY
                           LIBERTY ACORN FOREIGN FORTY
                            COLUMBIA THERMOSTAT FUND

     Supplement dated April 2, 2003 to Statement of Additional Information,
                    as supplemented, dated September 25, 2002

Effective March 4, 2003, each of Liberty Acorn International and Liberty Acorn
Foreign Forty may waive the 2% redemption fee for 401(k) plans that are in the
process of liquidating their Fund investments.


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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