Quick install guide

1. Read (and follow ) this tutorial in order to add the rpmforge (also known as dag ) repository to your list. To cut a long story short:
a) Download the rpmforge-release package. Choose one of the two links below, depending on your architecture. If you are unsure of which one to use you can check your architecture using the command uname -i (executed at a bash prompt).
   for i386: http://apt.sw.be/redhat/el5/en/i386/RPMS.dag/rpmforge-release-0.3.6-1.el5.rf.i386.rpm
   for x86_64: http://apt.sw.be/redhat/el5/en/x86_64/RPMS.dag/rpmforge-release-0.3.6-1.el5.rf.x86_64.rpm
b) Install DAG's GPG key
   rpm --import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt
Verify the package you have downloaded:
   rpm -K rpmforge-release-0.3.6-1.el5.rf.*.rpm
Security warning: The rpmforge-release package imports GPG keys into your RPM database. As long as you have verified the package and trust Dag then it should be safe.
c) Install the package:
   rpm -ivh rpmforge-release-0.3.6-1.el5.rf.*.rpm
d) Install the dkms enabled attansic driver package from rpmforge (and any needed dependencies):
   yum install --enablerepo=rpmforge dkms-atl1
2. That's all !

Now go to step 1 and do read the instructions available in the wiki (yes, I know you skipped them!)