Routers and USB Network Adapters

[FourFifty]

Alrighty, I seem to be having some mild problems getting my computer on a wireless network with my USB network adapter.

If it helps, both products are linksys. A router, and a USB network adapter. All I have to do is get the router to allow my MAC to access the internet. I called someone from Linksys tech support just to talk to someone who didn't speak any goddamn enligh. So here are the specs of my equipment.

Router Model- BEFW11S4, v4
USB Network Adapter- WUSB54G, v4.3

I can get into the setup screen. I wouldn't have this problem but my bro hardcore flaked on me today.

Thanks in advance.