Having never used the easy method myself all I can suggest is you follow the steps from
http://www.suse.de/~sndirsch/nvidia-...ler-HOWTO.html
There is also a one click installer mentioned there.
If you choose the hard way I can help, though I do note that they have left out by mistake going to run level 3 (command init 3 in root console) to install the driver in the hard way instructions. This must be done in order for a proper install.
If after following these instructions you need help please post back what steps you have taken and where you are getting stuck.
Good luck ! B)