how do i install programs on it when i can't get past the boot up screen?
I put in a different hard drive with Win XP home edition and it gave me a screen saying it didn't start successfully, and i need to start it in safe mode or start as normal. When i click "as normal" i get a blue screen saying there was a problem and gave me the tech error:
***STOP: 0x00000007B (0xF894d528, 0xc0000034, 0x000000000, 0x000000000)

so im guessing its a heating / CPU error. Will "Thermal Paste" really make that much of a difference? Im also running it with an open case, so im pretty confused as to what it is now. The power settings are for 115 volts, should i increase it?

I tried to run hackthis! and some of those other programs during the boot up but nothing would work.