heres a method i just found on a website
"This morning, at the end of a lan party, me and another buddy grabbed a xbox controller and a spare USB cord, and started to turn it into a PC controller.
Pretty much what we did was strip all the wires and since the cord on the xbox controller and the usb cable were similar, all we had to do was match up wires and twist them together or solder them. But there is one yellow wire on the xbox controller cord which is useless and we jsut snipped off. Unfortunately, my soldering iron wasn't working so we had to twist the wires and electrical tape them, but it still worked out fine. "
If you can't get it from here please post again, and i will look some more, maybe a site with pictures. heres another with pictures(but he uses pc port usb slots?)
http://www.llamma.co...usb_adapter.htm