If you are seeing the nvidia splash screen when you boot up, then it is done, but I suspect it isn't. I had to do the following, so you are probably not quite there. Go to /usr/share/doc/nvidia/
and then install from there.
'1) Kernel sources must be installed and configured. Usually this means
installing the 'kernel-source' package with YaST2. Update it - if not
already done - via YaST2 Online Update (YOU).
2) Use the nvidia installer for 1.0-5336.
3) Configure XFree86 with
sax2 -m 0=nvidia (0 is a digit, not a letter!)
NOTE: There is no need to try to enable 3D support. It's already
enabled, when the nvidia driver is running. Ignore the
misleading error message, that 3D support can't be enabled.
This problem will be fixed with SuSE > 9.0 and is related to the
latest nvidia driver release.'