OS Commerce USPS Label Function Modification

I have a USPS label function in the admin of my OS Commerce web site that automatically transfers shipping information to the USPS web site in preparation for making Priority Mail labels. The function worked fine until the USPS update on May 14. I need modifications preformed to my current USPS function to accommodate the recent USPS changes. This project should be very easy for a competent OS Commerce professional who is familiar with the USPS label function. All of the features of the USPS Priority label function version that I have should remain. Some of those features include the order number appearing in the second line of the return address and certain default boxes checked or automatically entered. You will be working on a test site. As a result, you will have to successfully and completely relay which files you modified/added/deleted so that I can make the necessary changes to the live site before escrow is released. ONLY OSC EXPERTS WHO ARE KNOWLEDGEABLE ABOUT THE USPS LABEL FUNCTION PLEASE APPLY. Do not apply if you do not have experience with the OSC USPS label function. Please ask if you have any questions.