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I have a Belkin f5d7010 wireless card.
You have my condolences. From a Linux perspective, the whole Belkin f5d7xxxx line can be a nightmare to get to work. Belkin ought to be flogged for foisting this kind of crap on the planet.
From what I've seen here, the highest chance of success with this is with the ndiswrapper driver. Ndiswrapper is a "driver" that in reality allows a Windows driver to function under Linux. Although I'm not a *buntu user, I'm pretty sure that if you look in your software install tool, you should be able to find an ndiswrapper package to install. Once that is done, you need to install the Windows driver for this. There are good instructions on the ndiswrapper wiki on how to install a Windows driver (be sure to ignore the bits about compiling ndiswrapper).