I just bougth a website. Payment system was set to use Paypal IPN. But is not working. I need someone to make it work. It suppose to automatically add purchased credits to the user's account. I create a packedge in my site for .01 cent for testing. Mysite is [url removed, login to view] and attached is my website'scomplete files. I really don't know which files will need to be modify/change in order to work. Thanks.