oscommerce modification

I have an OSCommerce store site that is 95% done. I have a large import of items that needs to be completed and I need a modification done to accept the size attributes for the items. Because the database is large, it will require splitting the data base in order to upload. ## Deliverables 1) Complete and fully-functional working store ready to sell. 2) Exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform MySQL and OSCommerce