My concern with paypal is how to acknowledge that the return url was triggered by them, not spoofed?? They don't provide a transaction code, or hidden URL to return to the way Ibill did.
PUGDOGŪ
PUGDOGŪ Enterprises, Inc.
FAQ: http://pugdog.com/FAQ
PUGDOGŪ
PUGDOGŪ Enterprises, Inc.
FAQ: http://pugdog.com/FAQ