Maybe a deailed description of the device would be in place, and in addition information from dmesg/lsusb if there is any. It would be good to first make sure which chip the card is using, because that's what the driver selection depends on..and don't take the chip granted, it's known thing that (at least part of) manufacturers do change the chips used by some cadgets to win more for the price, and not alter the cadget name more than maybe one number or so (so for the customer it could be difficult to know which chipset that model means; it's not important if your OS is listed as "supported", but for Linux..well, you know). After this you can hunt down the right driver, or if there is no native driver, try out ndiswrapper which is may help you out if you only have Windows drivers. Note that ndiswrapper is not any better (usually only worse) than native drivers.
Just to mention, I've seen a few usb wlan cards/sticks that don't have Linux drivers, and though most of them have been working on Linux after all (trough ndiswrapper, for example), they haven't been the best pick-ups around. I recently bought an A-Link 54Mb wireless usb dongle (ZyDAS WLA-54L, driver zd1211rw), and it's the best I've seen; excellent signal quality (the other one I tried always stayed at half of that signal quality or lower), and the best of all, it started working less than a second after I plugged it in. No wonder the box said "Linux" was a supported operating system. And the price? A little over twenty euros, which makes it less than 30$. I'd say it's not bad price for this sort of thing that actually works - I rather pay a few extra coins than buy a cadget that is slightly cheaper and more than slightly less easily made working.
Last edited by b0uncer; 04-11-2008 at 09:57 AM.