Sounds like you need to google how to use something called “ndiswrapper”. (Allows you to use Windows’ wireless drivers.) From what I’ve read, however, you might also do some searching to see if your device has a native driver that doesn’t take ndiswrapper. Just a suggestion.
I searched just a bit and found a lot of entries over at the main Ubuntu forum site. They are pretty quick there about support. Maybe you can find an archived post from someone with your same wireless device.