yeah theres no way to get the wep key from the wep screen in windows. (well im sure some hacker somewhere has a way but theres no direct way to do so)
So we were just showing him how to reset it so he could recreate a key
Edit: damn Julius how did I miss your post
your could sniff around the wireless and hope that you pick up initial traffic of the handshake between the router and machine. Then youll have to decrypt the 64/128 bit encryption.
I just installed OSX and it fixed the problem. Awesome laptop for $50, G3 iBook 500mhz