hope you can offer some help!

I'm new to Ubuntu (and Linux for that matter), but I managed to install Ubuntu 12.04 yesterday on an old Dell Inspiron 1564 Laptop. Everything works fine, with the exception of the wireless connection.

Using my wired ethernet, I was able to look up several solutions which seemed as if they would work, but I've had no luck.

Currently, wireless does show as enabled, but all wireless networks are disconnected, in fact, none of the networks are even listed (and I can see them on other devices in the home).

Let me know what you need to help me! Thanks in advance!