i cant define this video driver in rh9.0 at all.
i know that rh9.0 is so old but i cant replace it because we run a specific software over it that runs on dual screen.
so any one has an idea how can i define this video card.

you are aware that RH9 is 10 Years out of date

you might be able to get the antique nvidia 71 driver to work ? maybe
-- 32 bit
ftp://download.nvidia.com/XFree86/Linux-x86/71.86.15/
but that driver from 2011 is WAY TO NEW for a os from 2002
there is a version from 2007
ftp://download.nvidia.com/XFree86/Linux-x86/71.86.01/

as to xorg.conf
see the readme
-- the 2007 version might be TOO new
ftp://download.nvidia.com/XFree86/Li.../README/README

so should i replace the video card with an old one than can be defined by rh 9.0 ?

Are you absolutely certain that your application will not run on a newer Linux release? RHEL 5 and 6 (both of which are absolutely supported) contain compatibility libraries that allow programs targeted for RH9 to run. If you have the source for the program, recompiling it to run on a newer release would be fairly straightforward, too.

If this program really won't run on anything newer as you claim, you probably have no choice but to use a video card compatible with a driver version that will work with RH9. However, at some point such hardware is going to be increasingly problematic to keep working, to say nothing of the bugs, security holes, and other risks engendered by running unsupported, 12 year old software. Sooner or later you will either need to (1) find a way to make your software work with a newer Linux distro or (2) find new software that does the same task. You can choose when to make that decision, but it will have to be made at some point.