pestluder

Hi all. I used nlite to create an install cd for my new dell laptop a couple of weeks ago, it worked like a charm. But today I tried to plug a usb harddisc in, it didnt work and xp just reports an unknown device under "usb controllers". Pen drives work fine though. So I suspect that I removed one to many drivers form the cd, and I would like to know how to add the drivers back into c:\windows.... Thanks a lot. ps. running xp sp2 with all recent updates