Widescreen Monitor Help

Im running Windows XP SP2 and I have a crap graphics card from ages ago (S3Vision 968)

OK, there are initially two problems, but one I'm bothered about more than the other.

I recently bought myself a cheap widescreen monitor, however, with the age of the graphics card, I have a stretched screen. I tried to reset the screen resolution but 1280x800 isn't there.

Is there a way to install it or is there some code/some kind of hack to put it there.

As well as this, I have searched all over the internet for the graphics card driver and I can't find it. Could someone possibly provide a link.

The main priority is to sort out the screen resolution to 16:10 though without buying a new graphics card

Thanks in advance