troy - thats correct - some sponsors have programs that will allow you to set up where surfers go after they click the paysite banner depending on where they live - its very profitable for some out there
I wouldnt ever put an overall script that just redirects free site surfers or people before they have clicked on a banner - unless that script is just targetting a particular country that doesnt even support the use of credit cards - but then most of those dont support other methods of paying either - best to just get them off to a trade somewhere