We are running Paypal website standard and we have an option for members to upgrade to gold membership package from our site. when they upgrade they recieve more benefits. The promotion pages we have set up are : www.website.com/affiliate (outlines the benefits of being an affiliate) and www.website.com/gold-membership (outlines the benefits of being a paid member) If you are a free user in our site and you then click www.website.com/upgrade-account you will be taken to our upgrade via paypal link, and upon checkout get directed back to home page of website.com Thats all we have. In Shareasale - Step 4 for with paypal.this is what they have said to do to add the following: PHP: echo ("<img src=\"https://shareasale.com/sale.cfm?amount=$amount&tracking=$tx_token&transtype=SALE&merchantID=XXXX\" width=\"1\" height=\"1\">");Where you replace XXXX with your ShareASale merchant ID number. Please note there is currently a bug in the PayPal sample code for PHP. If you are running PHP, you will need to change the line that reads: $amount = $keyarray['payment_gross']; to this: $amount = $keyarray['mc_gross']; Where do we add this code? to which page? and techcnically im a bit unsure of what is involved here?