OSCommerce add Affilaites

Need someone to modify my OSCommerce site. The currnet site looks like this: [login to view URL] We have sucessfully added a Canada Post shipping module to it, and we have almost sucessfully done the Affiliate Module, the Affiliate module is working in Admin, but we can not seem to add it to the store. We need someone who is very knowledgable in OSC MS2.2 and PHP! as this store is not a standard virgin OSC MS2.2 site, its seems to be rather changed from the stock version. Please provide portfolio of past work. This is one of many things we would like altered but we are taking it one step at a time, so more work may come also.