I downloaded the sony usb driver from one of those sites on the google page that you gave me (i can't remember which one).
Unfortunately it doesnt' work on vista but i do have a second computer which still operates on xp and that worked fine!
I simply installed the usb driver onto the computer and then opened my video camera with windows movie maker. great!
it's a damn shame that vista has so many problems ( i got my vista computer as a gift - unfortunately i can't sell it, because that would be rude but i still have my first computer which i use when vista doesnt work - which is a lot! Microsoft really sucks
good luck to the people with only one computer (vista)