The kernel file you have dloaded is a source RPM, did you rebuild it?
rpm --rebuild NVIDIA_kernel-1.0-2960.src.rpm
after rebuilding find the path to built srpm and install it as a normal rpm.
If you did all things right but it stiil not works, try to install the drivers using the tar file (i think it's alwais the best way).
You have only to unpack the two files and then to run (as root):
for the kernel and for the glx.