The purpose of this contribution is to place a Tracking Code at the checkout_success.php to identify sales generated by your Affiliates. This contribution is made for ShareaSale and Darkblue Affiliate Tracking Codes. When you sign up either for ShareaSale or Darkblue as a Merchant. You get a Tracking Code which you have to place on your order confirmation page (i.e. checkout_process.php) I have tested it under ShareaSale and it works. I take no responsibily for this contribution. Use it at your own Risk.