in the success page you sent, you are outputting the order number using the following code:
Receipt For Order #<?php echo $_SESSION["OID"];?> </h3>
on the confirm page the store order summary behavior stores the session order number as:
$WA_sessionName = "JULES_OrderID";
change the code on the success page to reference the correct order number session:
Receipt For Order #<?php echo $_SESSION["JULES_OrderID"];?> </h3>