Let me now how it works; and not a problem
... So many replace options, it can be a pain to choose the right one lol... I've used strreplace for similar things so I knew how to use it to do this hehe...
oh and btw, i WAS just going to add a replace for one of the terms and embed the affiliate id, but it could also effect other urls; so your method, if it works properly, would work better i think