How to determine Windows 7 Ultimate revision

Hello,
This is going to show what a novice Windows 7 Ultimate 64-bit user I am. From previous information such as a 200 MB System Reserve area that this must be an early version. Since I've installed it I've downloaded all Microsoft updates. Can anyone tell me how to find the exactly what Windows I have, the SP level and revision. What is a K or a KM?
I've never specifically was prompted to make this version change from a trial version. It has been authenticated by Microsoft. All help is greatly appreciated. Once I get the last few problems solved, I'm going to start reading what would seem to be great tutorials. Thanks
glennc

You shouldn't need the revision or build number, because you should know if you are using a legit final copy or not. There's also no publicly available SP1 yet, so your SP level is zero.

Dear Gentlemen thank you for your assistance. May I say that this forum has a large group of intelligent people.

Hey richc46,
The "what os am I running" didn't do much. The link to the tutorial on About Windows - Open on winver.exe worked to actually the exact spot I was looking for. My version shows the same as the sample in the tutorial Thank You.

Hello merkat106,
Lots of good information. A volume of information. I was getting confused with picking up tidbits here and there. The winver.exe showed me what I wanted to really know. Thank you for your time and knowledge.

Hello DeaconFrost,
You know that and a lot of people know that, but I knuckle dragged on that one.
I knew it was legit I just wanted a Windows 7 Ultimate 64-bit OS to tell me what it thought it was. It has and I'm clear. The story of this install and all the problems I had and am still having is epic. Things are going on that I haven't a clue about. Drives reassigning themselves, conflicts with multiple programs, a Disk O that is physically Disk 1 and the physical Disk 0 says its Disk 1. Have installed everything from CPM up to XP Pro without nearly as many problems. Of course the last build I did was with an Athlon with the current Windows 2000. So there's a lot I have to catch up with. You Gentlemen have been great in helping me run done the last maybe 5 or so problems.
Thanks to all
glennc

Bare Foot Kid you got me ROFLMAO. If I get much further south I have to swim from ice berg to ice berg. Thank you Kindly for the possibly pertinent information and a good laugh. I bookmarked that page of the tutorial for break glass in case of Emergency. Thanks and take care.
glennc