I'm looking for a very simple affiliate program tracking script or software with possible install as well. I'm familiar with some of the free scripts available like Post Affiliate but need something simpler. I believe Post affiliate can be modified (GNU) for free if you have no other options. Affiliates need to be able to sign up for an affiliate account and receive a unique affiliate ID or referral url either instantly or by email. The ID should track by cookies for at least a year, preferably for lifetime. I don't need to track payouts or commissions just the referral code of the affiliate, preferably by cookie, to an email contact form. So, the email from the customer letting me know they are interested in my service should then contain the referring affiliates ID letting me know who referred them. The affiliate signup form should contain fields for the affiliate's name, email address, and one more field (they'll input their Clickbank name). The tracking code should be able to track through the entire site (about 6 pages) from salespage to contact form. Essentially then I need a simple script to generate an affiliates ID and referral url and be able to track the ID through a small website to a contact form that a prospective customer would use. Please let me also know what install for this software would cost or if would be something I could install myself. My hosting plan uses CPanel. The simpler the better. Also would be good if the referral url generated via the script was search engine friendly. In other words no ? in the url, and no penalty for duplicate content via replicated pages, if possible. Payment will be held in escrow. If possible a working demo of the script on your site would be helpful.