Not to sound like a complete moron, but how do I determine what my session name is? I looked at the confirm page and it says: $WA_sessionName = "sumidrive1_OrderID"; Would that be how I set my session name on this checkout_success.php page too?
Also when your code says: // If you are using session_name("something"), don't forget it now!
does this mean that I need to put the name of my session in the parentheses session_start(); ???
If so, then in your last code, could you please tell me exactly where I need to insert my session name?