LEASE AMENDMENT DATED OCTOBER 17, 2003

EXHIBIT 10.1

LEASE ADMENDMENT

     THIS LEASE AMEDMENT, made and entered into as of 10-17-03 by and between FOUR HUNDRED CHESTERFIELD CENTER INC., formerly known as 400 CHESTERFIELD CENTER CORP., hereinafter referred to as “Landlord,” and DALEEN SOLUTIONS, INC., formerly INTERTECH MANAGEMENT GROUP, INC. d/b/a ABILITI SOLUTIONS, INC., hereinafter referred to as “Tenant”:

WITNESSETH:

     WHEREAS, Landlord and Tenant entered into a Lease agreement dated May 12, 1998 and modified by Lease Amendments dated May 28, 1999, September 1, 1999 and April 17, 2001 and by an Assignment and Assumption of Lease dated December 20, 2002 (hereinafter collectively, the “Lease”), on the first and second floors of the building located at 400 Chesterfield Center, Chesterfield, Missouri, which spaces are identified as Suites 130 and 200 covering approximately 15,302 rentable square feet of office floor space; and

     WHEREAS, Landlord and Tenant desire to amend the Lease as set forth below;

     NOW THEREFORE, in consideration of the mutual obligations hereinafter contained and other valuable consideration paid by each of the parties to the other, it is agreed between the parties as follows:

     IN WITNESS WHEREOF, the parties hereto have executed this agreement as of the date first above written.