I have now an almost working installation with iDeneb. But after restart i got "still waiting for root device error." the installation was working well, so i guess that the ATA / IDE driver that was used for installation is not loaded correct after the installation.

http://www.iclarified.com/entry/index.php?enid=1119 here is a solution for the problem. But i cant see the Extensions folder from the Darwin terminal (I have checked it 3 times. But I can see it from Windows). I have tried to copy the files with Knoppix Linux, but i cant mount the OSX hfs+ partition. Could someone help me out with an idea?

http://esz.ovh.org/extensions1.jpg
http://esz.ovh.org/extensions2.jpg

it seems that the extensions folder is burned in a different format than hfs. hfs explorer can't acces my osx partition.

How i can move the ATA driver to the OSX partition?

No. I have moved the files and i t did not helped. It helped to use the bootloader from the cd to run the osx from hdd. but it does not boot. i get a lot of errors and it's stops on an error.

The right Kernel with the right BIOS gave me a running OSX.

For me.
SSE3 Kernel
SMBIOS Mac Pro
AMD Fix

Install nothing more.