Go to IE type 192.168.1.1 into the address bar,This should Bring up the router if not;try(192.168.0.1).you should find a config utility here .Enable wireless,You may have to unplug the Router and restart you computers also.
With wireless you will want encryption;but,leave it disabled on both until we get wireless working,then we can cross that bridge.
If your router is "B" only the card also needs to be a "B"