My first advice would be to stick with the wire!!
almost half my income comes from wireless problems .... convenient - and when they work ... easy.
but wire always works (and is faster)
At least you know that the router works.
If you've set up the router from the supplied Cd ... it's easy to forget that a SSID and (probably) WPA/WEP (encryption) may well have been set up as part of the install.
(if not you need to set them up)
Because you sound to have bought the adapter yourself ... the "foreign" device expects you to set it up manually.
Check the aol documentation for SSID, WPA/WEP (or PSK info)
Using your wire connection ... download a proggy called Netstumbler
http://www.netstumbler.com/downloads/
It's useful for detecting wireless networks of all flavours ....
and will (should) show your network - even though it can't connect to it.
if you can't see it ... it's probably the router that's faulty.
If you can ... it's probably just the adapter that needs setting up with the same keys as the router
look at
http://compnetworking.about.com/od/wirelesssec urity/tp/wifisecurity.htm
http://compnetworking.about.com/od/wirelesssec urity/tp/wifisecurity.htm
http://www.networkliquidators.com/article-wire less-router-security-a-step-by-step-guide.asp