Edit/Fix CreLoaded Payal IPN / notify_url

Colo Wamp Server running CRE Loaded v6.2[09] I have been running the default Paypal checkout with Cre with Paypal for 4 months. As of last week IPN's have been going to some default IPN that's getting sent to paypal rather than the one I have PP set to send it to. For the last 4 months IPN came back to "http://www.xxxx.com/checkout_confirmation.php" but since last week its been going to "http://www.xxxx.com/ipn.php" PP Tickets said my Cre IPN has a hardcoded IPN "notify_url" that needs to be deleted so PP's settings can direct it or edited so it will return it to the "checkout_confirmation.php". I'm good at somethings but lost as to where I need to edit. Instructions that work will pay as well as doing it yourself if you like. Looking for something soon. It's a pain manually sending links for orders. 8)Thanks