Setting up a wireless driver under Linux

I’ve had 2 issues when attempting to setup the ADMTek 8211 driver source under Linux:

1) When attempting to install under Mandrake Linux 10.1, I received an error from the gcc compiler that it could not find the source in /usr/src/linux2.6.8-10, or something similar to that.

2) When attempting to install under Xandros Linux, I received an err that “gcc: file not found” or something close.

My question:

Can someone tell me under Mandrake where the source (I assume for the OS that the driver needs to rebuild with gcc) is located, or can someone tell me how to setup gcc under Xandros?

I just want to get my Linux box running on the network so I can go out and download tools directly.

Thanks