awesome squid

I just get this message constantly whenever i try to play theatre of war africa 1943 i was looking at some old threads and thy say catalyst 8.9 works but whenever i try to download it it just says i don't have the software or hard ware my PC is an XP Media centre and i am not so sure what my graphics card is where is it on that dxdiag thing it some guy tod me you click display 1 but my pc has only 1 option. HELP