Hi redheugh and welcome.
Sadly, the USB connection is not supported by Vista or Windows 7. No working USB driver is available.
The usual method of transfer with Windows 7 is to use an iLink cable (DV, firewire), and import using Windows 7 compatible software - Windows Movie Maker works OK. Firewire is supported generically by Windows and no drivers are required.
This depends on you having an iLink/firewire port on your Windows 7 PC - or at least an ExpressCard Slot or PC Card Slot which will take a firewire card.
