Try usbview (if installed - if not, just grab it from the CDs), it'll show you what's connected to where. But...(after a quick google on obscure websites) I've not got much more to say.
Your best bet is to discover what chipset the card is using (prism etc - check the manuals / docs) and start from there, if it's a pretty generic chipset you might be ok, there are drivers out for most.
Links that might be useful...
- dig through the site, lots of info.