So the second question is easy. You have Vista 32 bit. Which means you can only address 3 GB of memory or so.So that's why it says you only have 3GB of ram.
The first question is probably because there are different "cores" installed depending on what processor you have when you install Vista. I'm reasonably sure you will have to reinstall Vista and magically your additional cores will show up. Good Luck!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.