A Few Questions About Parallels 5 and Windows 7

Hey guys!
So, I am taking a computer programming class that requires Windows, just so we can all be on the same screen at the same time (lame, I know). Anywho, I have a Mac, so my teacher provided me with a log-in to MSDNAA, to get Windows 7 for free, and he gave me Parallels 5.0 for free as well. (go community colleges!)
A few questions:
1- I am running Snow Leopard right now on my 2009 MacBook Pro, and my processor is the 64-bit processor, but after running the command uname -a I discovered that my Kernal is loading in the 32-bit mode. Is this normal? Shouldn't it be running in 64-bit mode?
2- Which Windows 7 should I get, the x64 or x86 (32-bit or 64-bit)?
Thanks for any/all help!
Model Name: MacBook Pro
Model Identifier: MacBookPro5,4
Processor Name: Intel Core 2 Duo
Processor Speed: 2.53 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Chipset Model: NVIDIA GeForce 9400M
Type: GPU
Bus: PCI
VRAM (Total): 256 MB
Terminal reply after command:
local 10.4.0 Darwin Kernel Version 10.4.0: Fri Apr 23 18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386 i386
the i386 means it's in 32-bit mode, right?

Try the Windows forum area - http://discussions.apple.com/forum.jspa?forumID=687

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