I thought that reply was innocent enough....no harm or sarcasim meant. It now sounds as if you knew there was a solution out there, but was just looking for someone who could point you in the right direction. When I read it, it sounded as if you were looking for custom code to accomplish tracking. Sounds like you found it. GL
Really, there is no interest on our end. Again, it sounds as if that other guy has something already created.
Some things to think about beyond just having some code made for you which could lessen the pain down the line;
1.Who's sever will the code reside on?
2.Who will maintain the database tables the affiliate app will utilize?
3.Prepare for a maintenance clause from your developer to support the new code.
Good Luck