Ed,
Information about the wireless card can be found HERE
How to login to your wireless router and using these Recommended Wireless Router Settings I use channel 11. I suggest making a new SSID to make connecting easier.
Here is a little wiki I made up for a Linksys router. Most routers are basically the same. Setting up/Troubleshooting a Wireless Network You can stop at the line before making the system restore point.
If you have any questions feel free to ask.
Rick