Skip step 17 and do this: Open Kext-Tools Folder and install legacy_kernel-10.8.0.v2.pkg.
The Mac App Store will not work according to these instructions: Open Kext-Tools Folder and install now VoodooHDA-2.7.3.pkg and after this run Kext Utility.app. Now your OSX 10.6.8 must boot without the OSX86 MOD CD! Eject your OSX86 MOD CD and only now click Reboot on the Combo Update Window! If you get 'Installation failed', change the date to a date that was before 31 March 2012! When the installation is finished: When this is completed and you can see the Desktop, copy the Kext-Tools Folder and the 10.6.8 Combo Update (what you have previously downloaded) to your Desktop. After short time you can configure your OSX Installation. Now turn your computer on and you can see the screen of step 4 again.
Put again the OSX86 MOD CD into your Drive and unplug the power plug. (It is normal: You see the apple logo and it stops loading!) The installation takes more than 20 Minutes.
