Finish Code for PDF Ticket Module

Im adapting a PDF ticket module in Freeway php open source Shopping Cart [login to view URL] which is just a beefed up osCommerce I have the basic set up ready. Briefly....when a product is purchased, the customer can go to his account and print a PDF ticket/invoice for that order. However I just need a peice of code to allow the ticket to display ...not just for the order but also for each of the product quantity.....with some kind of ID number added to the product name to make each printable ticket unique. For Event Tickets eg Customer buys 3 tickets for the Big Show and 2 tickets for Another Show. I want him to be able to print out 5 identifiable tickets rather than the 2 product order tickets. Also need a little peice of code to secure the opening of the ticket for the customer id only. Thats it. Not much to do, I'm just stuck.