Make shure you have installed teh Kernal development packets from the Redhat 8.0 CD. After you've done that, just download the *tar.gz src files for the Nvidia_kernel and NVIDIA_GLX.
"tar zxvf" the files, go into the kernel directory and type" make install" after is done go to the NVIDIA_GLX directory and type " make install".
Then edit the XF86Config file and where it says driver "vesa" type driver "nvidia".
And thats it.
You should have nvidia drivers running.