OK, you may not like this, but here is what I would do. As a warning, if you are computer illiterate, you can just skip this advice (or get a friend to help).
First, XP SP2 has approximately 4,000 known unresolved errors, and about 6-10,000 more that MS does not yet acknowledge. Fortunately for you as a home user (but unfortunately as a gamer), most of these errors do not directly affect your gameplay of RTW. However, some will... and they can manifest in unusual ways, depending on exactly what you have installed, uninstalled, and the websites you surf (or have even visited, particularly with MS Internet Explorer).
The fault tree becomes quite complex, and the fastest and surest way to deal with the myriad of interrelated problems is this: Reinstall windows XP. But not a plain install. You should slipstream a gold copy of XP and burn your own new CD. This means to integrate SP2 into XP, and create a new install disk, then install from it. MS describes how to do it. However, it is easier with a 3rd party program like the freeware nLite.
Rather than post a very long description, just look here.When you create a slipstreamed XP SP2 disk (it is 100% legal, and it is explicitly cool with MS, if anyone is wondering), then install a fresh (not upgrade or re-install) XP from it, install your latest stable motherboard & hardware drivers, bring your XP updates up-to-date via windows update including DirectX 9.0c, ensure your system is free of conflicts (Control Panel, system), then install and update WMP10. Then install RTW, and patch it (either 1.2 or 1.3, depending on your preference).
I think RTW will run on the 9200, though I cannot verify this because all my machines run various nVidia cards, except for a lone 9600 machine. At any rate, RTW should not crash like you describe owing to the 9200 card. The crash is related to something else, and I think it is not directly related to SP2, though it may well be caused by an SP2 installed update conflicting with something on your system, or in your registry.
Post your results .Happy hunting....