We have been looking for a complete patch to integrate eBay with osCommerce for some time now, but with no luck. However, we did find the following two incomplete patches :-
1. auction.Lister by Andrea Lener (31.03.2006)
2. Auction Lister Pro by David A. Henry (12.08.2007)
With the help of both patches, our programmers have now started integrating eBay with osCommerce. Given the size of the task, it will take some time to complete, but we look forward to being able to send auctions out to eBay, with minimal effort, via osCommerce.
Please feel free to contact us with any questions you may have.