Hi, i did it without any patch. I used Apple Software Update and updated my Snow Leopard 10.6.2 to 10.6.4. At reboot i got a kernel panic (SleepEnabler) but i rebooted in -s and typed this:

mount -uw /
cd System/Library/Extensions
rm -rf SleepEnabler.kext
reboot

and it worked fine!

My Kernel is: The original one from Apple. I'm not using a patched one