Did you ever try or were you successful upgrading to 10.6.6? Every time I try when I reboot I get the circle with the line through it on the silver apple screen.
No, I haven't tried upgrading yet. That symbol usually means OS X had a kernel panic. You can try copying and overwriting your kernel with Prasys' kernel (from http://prasys.info/2...kernel-is-out/) to see if that works in the root directory. Do you have Windows also installed as the same hd? ..this would make replacing the kernel file easy with say MacDrive installed.
Did you follow any upgrading guide before running the update? (they usually have a number of precautions and steps to do before and after the upgrade...I just noticed on Prasys page with the 10.6.6 kernel he created a package to run immediately after running the update [before rebooting] to replace the kernel). You can try using the ModCD to do a repair as well. Hope this helps, and sorry if it doesn't..I find updating OSX on hackintosh a hit or miss.