Check out the step-by-step instructions at the ndiswrapper wiki (see my sig for the link). They have distro specific instructions as well as general instructions.
By the way, it is possible that your distro already comes with ndiswrapper installed. If you tell us what distro you're using, we can probably offer better advice.
And Welcome to LQ!
Last edited by Hangdog42; 07-25-2006 at 01:20 PM.