You'll need to log into the router to get the SSID, channel and WEP/WPA. You can usually do that with telnet or entering 192.168.0.1 into your browser address bar.
Digging around in your router, you'll find all these mysterious settings. Once you have them, enter the very same settings into the wireless card. It may take a few reboots here and there, but setting up a wireless is fairly straightforward in XP as compared to 98 or ME.
If you have the option, WPA is much better than WEP, use that. Also, most default login ID's for routers is username: admin, password: 1234. If you haven't changed the password do it, before someone else does and locks you out of your own network.
[ 10-14-2005, 02:49 PM: Message edited by: Zebodog ]