Ok, heres my scenario:

I have a store bought Acer Aspire x1700 desktop PC.
2.2Ghz Intel Celeron Dual Core
2 gig Ram
MCP73T Motherboard
160gig SATA HDD

I installed Mac OSX Snow Leopard with no problems, then it asks to reboot, after rebooting, the Apple logo appears and does nothing else. I left the computer on overnight to check this.

I then found a tutorial tells me to reboot after installation with Boot132 CD in the drive, so I tried that and the screen went black, then after a while, my monitor now displays "out of sync" and wont display anything

Any ideas on what I need to do? I know I have to format the HDD and try again but what do I need to do to get to the next step after rebooting?