Originally Posted by cyberxxx

Can't say for all, but we are also using cookies to track the surfers. So once the surfer was reffered to our of our sites (tour pages, fhg's etc) with an affiliate CCBill code, it (the code) stores in the cookie. The surfer may even close the browser or re-boot his computer, and type in the URL manually, but if he decided to join, the saved affiliate code will be extracted from a cookie and will be sent to CCBill signup form.

Personally I thought that all the serious sponsors do the same.