I think you may be out of luck trying to get the wireless adapter to run on Red Hat. I had adapter WUB11 ver 2.6, and the last time I checked (about two months ago), Linksys wasn't supporting Linux for this.
Try looking for it here:
http://www.linksys.com/download/
Find the adapter type in the product drop-down, and choose "other" for the OS. Maybe they've updated by now.
Go to a bookstore and look for a book on Red Hat 9 in the computer section. I know the "Dummies" series has a book for RH 8 (I have it!). Also, keep reading posts on this forum, and try this one too:
http://www.linuxforums.org/
I'm learning, too. Good luck!