People, thanks for taking your time to help me, but i decided to re-install ML, and now i'm running 10.8.3 with no problems! thank you again for helping me
I got to solve it by re-installing the combo update, connecting the HDD to my desktop pc (which is running 10.6.8). I also changed some kexts and installed the lapic fix kernel.
I'm gonna try the boot flags you told me and report to the ship as soon as posible .