RushX

I've tried searching for formatting in google and here but I always end up with how to remove the U3 stuff. The problem I have now is I want to remove the payload and revert the ISO mounted on the CD partition of the drive back to the original. I have Gonzor's Payload right now and have no clue on what to do. Can someone send me their original .ISO of a fresh U3 drive so I can mount it with the Universal Customizer?