Using the same card on two machines (one with Vista and one with XP) without
any problems (now) to a Linksys wireless router/ADSL modem. The Belkin XP
Drivers do not (appear) to work in Vista (no surprise) but Vista identified
it, and installed the card as a Broadcom 802.11g wireless network card,
which in fact it is with a Belkin badge. From what I can gather from their
support you won't get any drivers from Belkin themselves until the full
version of Vista is released.
I got my network going initially with non-wireless connection and it did
take a while to get the wireless bit working and by a lot of trial and
error. If I remember correctly to get it talking to the Linksys Router I had
to use manual IP Addresses and manual DNS Server addresses (IPv4) as
automatic just would not work and left IPv6 well alone. I also use a manual
Don't know whether this will help, but the card does work it just needs a
lot of persistence and patience.