*www.cse.iitk.ac.in/users/bms/pdfDoc/LINUXConfigureWirelessCard.pdf
^will be useful.
BTW,with intel h/w it will be easy
,make sure you have
this drivers(rpm)
also,are u preparing for RHCE certification?else,RHEL is a waste and outdated old thing for a Desktop user.
Now,RedHat is known as Fedora,try
Fedora 9