Did you succeed or do you still need help.
If so, here are the steps I followed:
first find out your kernel version, open a terminal and type: uname -r
This will give something like 2.4.22-....mdk, (sorry, I'm runnng ML 10.0 now,so I don't know the right kernel)
Go to the mirror where you downloaded MD 9.2 and look for the right kernel-source, download this (doesn't matter where), if you are still in the terminal become su. Go to the dir where you saved the kernel-source and type: urpmi kernel-source 2.4.22-.....mdk.
After this is finished, download the nForce-driver
Still in the terminal as su type: rpm --rebuild NVIDIA_nforce-1.0-0261.src.rpm
A lot of info will pass your screen, when it is finished, look for a line like "wrote /urs/......
Go to that dir and there you will find the rebuild NVIDIA_nforce-1.0-0261.rpm
Type rpm -ivh NVIDIA_nforce-1.0-0261.rpm
After this go to the mandrake configuration and configure your network!