Here is the files you'll need to update your osCommerce shop. If you made custom changes to your store, you'll have to make the changes manually.
http://www.oscommerce.com/community/contributions,7394
Chances are likely that you may have been running your osComerce shop on MySQL 4.x and your new server is on MySQL 5. There are problems running osCommerce 2.2MS2a on MySQL 5, and the link below will take you to a solution.
