Hi all,
I have vista on my home pc and have not had a problem updating boxes of it using an adaptor. It could be more to do with the drivers for the adaptor that you have than vista itself. But from what i have heard windows 7 will work with most of the drivers developed for xp and vista. so there should be no problems there. you can try do an install of windows 7 on your laptop as they have a beta version that anyone can use till next march/april (no cost).