I was wrong about the battery being under the mother board, it is in fact under the keyboard. To get the strip off ( theplastic part that has the quick start buttons and power buttons ) you have to unscrew the screws on the underside along the edge there first becasue they hold the strip down. Once you unscrew those four screws, the strip can be lifted off. then uncrew the keyboard carefully lift it because there is a cable attached. You can release the zif connector and pull out the cable to put it aside. The wireless card is there with some tape over the battery.
Sorry if I confused you before, I was working on a different thing under the mb. ; }
The ziff connector has two little tabs on each side of the cable that you push up to release the cable. If you need pictures I will take some for you.