OK I got closer this time. I installed the kernel source (although its not specific to my athlon source) and i used "sh ./NVIDIA.....run --kernel-name=2.4.20-4GB-athlon"
It went through the install but afterwards gave me an error message like this:
"failed to execute /sbin/depmod -aq" "bad symbol index"
It then asked if I wanted to continue anyways, I said no. What happened? Thanks all for your great help so far!