Add a contribution to existing Oscommerce website

Website is currently using Oscommerce rc2.2a, and is modified with several contributions already added. Website is functional and has no errors, until the last Additional Images contribution installation. Looking for qualified professional programmer to either troubleshoot the errors for Additional Images contribution, or fresh installing the contribution based on restored backup. The contribution is [login to view URL] Should be simple...just that I am willing to pay for someone qualified to speed up the process. Thanks.