Add-on Oscommerce Gift Certificate/Coupon/Discount Feature - Repost - open to bidding

Hi! I found you through Google search looking to add gift card functionality to our OSCommerce Website: [login to view URL] We have some other customizations on it, but I think with some nuancing we should be able to have an effective gift card feature. I don't know how this needs to operate, so we would have to work together to decide on the design of this. Please let me know if you're up for it!