These drivers are uneccesary for kernels > than 2.6.2.
If you are using any other 2.6 kernel upgrade.
If you are using 2.4 kernels do this.
unpack the download.
tar -zxvf NVIDIA_nforce-1.0-0261.tar.gz
cd nforce/nvnet && make install
you will then need to add the module to your /etc/modules
echo nvnet >> /etc/modules
or whereever Suse uses to load modules at boot.
Before you do anything read the README which comes with the driver.