It's important to know the chipset on your card. According to this link
, Belkin changes the wireless chipset from model to model. Assuming that this is a PCI card and not a USB device, run the command lspci
from a terminal and post the portion of the output regarding the wireless chipset to this thread, being sure to surround it with "code" tags, which become available when you click the "Go Advanced" button at the bottom of the "Quick Reply" window.
If you are running Ubuntu, as the user agent icon in your post indicates, you could try opening the Ubuntu control center and clicking on the item called (I think) "Additional Hardware" (or something like that); Ubuntu might find the drivers for you.