Question about my computer setup
 

So my computer right now is Windows Xp////9800 GT 512 Mb////4 gigs ram////Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz/// I installed 3D mark 05 and it says I scored a 15000 while the best system out there is 60000. I ran return to proxycon at 51 fps then firefly forest at 39 fps and finally Canyon Flight at 101fps. I am not sure if exactly what these all mean. It says the best systems can run all 3 games at about 150fps. So can anyone tell me if my system seems to be running ok?

As long as your system is fulfilling the requirements of what you want it to do then yes, it's running ok.