If you have updated to the latest FC4 kernel -- kernel-2.6.16-1.2069_FC4 and the nvidia driver will not compile with this version ( errors out while trying to compile a kernel module with NVIDIA-Linux-x86-1.0-8178-pkg1.run ) then head over to nvnews.net and apply the cumulative patch mentioned there.
I have repackaged the updated 1.0-8178 driver into a custom .run package and can be downloaded here -- NVIDIA-Linux-x86-1.0-8178-pkg0-custom.run
md5sum: 4a6afb103e18a9263df71861752133f0