oofki, I think you're still struggling with the concept...

The affiliates post their adverts on their sites, or Google, or wherever. The adverts are to bring customers to OTHER people's web sites (sellers). What I provide is a central point where affiliates can browse for shop owners they want to represent, and where shop owners can offer affiliate programs to prospective affiliates. I sit in the middle and log the transactions to ensure "fair play" between both parties.

All I want to know at this point is HOW do I forward a web request without losing the IP info? I know it can be done because that's exactly what clickbank, mutualpoints, mrs cashback et al are doing.