Often it is seen and i've read many times that the old drivers for USB devices dont work wid XP. I've had the same problmes wid quite a few of my own USB devices, where the drivers didnt work with XP. to solve this problem you dont have to update the drivers coz there'z a little trick. The trick is that instead of installin the drivers first, you plug in the USB device first. WHen XP says that it has found a new USB device, than it'll ask u for the drivers, simply point XP to where the old drivers are (i.e CD) and WOLLAH, it'll b installed. this works for almost any USB device.
I hope dis works and will save u a lot of time, effort and most of all your HAIR(lol).