Hope I can be of some help.
I plugged my adaptor into my PC, and vista ran it's search for drivers, etc etc. In the end, it came up with this link:http://www.belkin.com/support/article/?lid=en&pid=F8T013&aid=6016&scid=0
Which allowed be to download the drivers - and I didn't have to enter my worn off serial number
Hope this helps!