here how I install it!
unzip the download file, then rename mach_922 to mach_kernel and use pcwiz's kernel to install it
use kext helper b7 to install System.kext (I did run kext permission for mach_kernel if need it)
reboot
and now I'm running 9.2.2 with out problem! this update fix my issue with reboot and shutdown.

BUT I see only 1 Core with full core speed of 2.6Ghz. I have Dual-core 2.6 GHz AMD Athlon 64 X2 5000+ processor. I don't see any problem sofar, and I don't know if my Leo read 1 core it will make any different!