I think just doing a modprobe NVdriver as root, then running the nv_check.sh script, will fool it into thinking that the right things are running. Though I'm not sure.
To set it up to automatically load (you won't have to do this now, but you will eventually), it depends on your distribution. RedHat uses the /etc/modules.conf file. You have to add a line there that says either alias /dev/nvidia* NVdriver or alias char-major-195 NVdriver, and the line you add depends on whether or not RedHat have finally enabled devfs on their systems. If [ -c /dev/.devfsd ] ; echo $? prints a 0, then you're using devfs. If it prints a 1, then you're not using it. If you're using devfs, then use the /dev/nvidia* alias, and if not, use the char-major-195 alias. Just for future reference...