Re: ERROR : unable to determine the nvidia kernel module filename
Unless Mandrake 10 is seriously broken, include/version.h should really be included by the kernel RPM. (The installer defaults to /usr/src/linux if it cannot find the correct /lib/modules/<kernel> directory, but I suppose it'd be nice to have the correct /lib/modules anyway. ;-)
Plus you obviously need the kernel sources in order to build the driver.
I noticed that this problem has already been dealt with in one of the sticky threads, although I guess YMMV with the proposed solution.