I will certainly offer some help dude - CHILL OUT! i can picture you sitting at your computer desk, sweating, swearing and banging the keyboard and mouse in frustration. You will only die sooner, but maybe that a good thing cos you sound like a knob!
If it is help you want try these "obvious" troubleshooting tips, because i expect you haven't already.
1 BIOS update
2 Take your Ritalin
3 Graphics card driver update
4 Get a decent graphics card
5 Take your valium
6 P4 3ghz is not a great CPU (and it gets way too hot cos they so inefficient), perhaps this is the limiting factor if your system becuase you have adjusted the graphics settings and its made no different? You should be able to try another CPU with same motherboard if its socket 775. - Basically, if your system is not crashing or experiencing other problems and it is purely the framerate thats a problem, it is either CPU not fast enough, GPU not fast enough or driver problem, or game code not optimised for your system.
7 Have a lie down
Good luck