I downloaded the 5336 version. I'm running kernel 2.4.22-21mdk. I have the kernel source installed. I ran the installer, and this is what's at the end of my nvidia-installer.log:
-> No matching precompiled kernel interface was found on the NVIDIA ftp site;
this means that the installer will need to compile a kernel interface for
-> Kernel source path: '/usr/src/linux'
-> Performing cc_version_check with CC="cc".
ERROR: Unable to determine the NVIDIA kernel module filename.
ERROR: Installation has failed. Please see the file
'/var/log/nvidia-installer.log' for details. You may find suggestions
on fixing installation problems in the README available on the Linux
driver download page at www.nvidia.com.