You should just download the source rather than the pre compiled redhat 8.0 rpms. This way you will create a driver tailored to your system. At the bottom of the download area for the nforce drivers, look for NVIDIA_nforce-1.0-0256.src.rpm
save this file to a convenient spot in your home directory and then open a terminal and log in as root by typing su and then givinig it your root password. Then cd to where you saved the .src.rpm file and type rpmbuild --rebuild NVIDIA_nforce-1.0-0256.src.rpm Please note that there are 2 - signs before the rebuild command ( -- not -). The system will chew on it a while and spew out many lines of stuff. Towards the end it will give you a "wrote" statement with a path to where the new driver it just built can be found. It should be in /usr/src/redhat/RPMS/i386
You should cd to that directory and then type rpm -ivh NVIDIA_nforce-1.0-0256.i386.rpm You should see 2 lines of dashes as it installs. You will need to restart your computer to let kudzu find the network card and configure it. It should now work.