Hello everyone!

I found this excellent guide on this wonderful forum to install Retail OSX on a Gigabyte GA31M E2SL board with Core2 Quad CPU. I was using http://osx86.net/f57/guide-retail-snow-leopard-dvd-install-for-g31m-t3672/ this tutorial, I prepared a 16GB USB Flash drive, burned the DMG on it, and used myHack Installer to patch it. The installer boots, but I am stuck on the preparing installation screen after I select the language.

What am I missing? I followed the tutorial exactly, altough I am not sure about the following to things:
-GUID partitioning: I did not see any option like this, I formatted the drive as Mac OS Extended Journaled
-SATA AHCI etc. In the BIOS of the mobo, I did not see any option like this.

Altough the machine boots with Hazard's Leopard installer and detects the hard disks. (http://leohazard.com)

Please if you have ever faced this error, and have a solution, please help me.

Thank you in advance!!!