No PID 0 is displayed (or anything named kernel_task). Everything in the Process List is running with kind = 64bit, but from my reading, that doesn't mean the 64bit kernel is running. Also, my MacPro 3,1 is one of the oldest machines that WILL run 10.8.2, but it also has the distinction of not defaulting to 64bit (at least that is my understanding), where newer machines will.
I may be OK, but it would be nice to be able to confirm definitively...
In the terminal, a uname -a produces this...
Randys-Mac-Pro:~ randythorderson$ uname -a
Darwin Randys-Mac-Pro.local 12.2.0 Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64 x86_64
Is the bold my confirmation?