General :: How To Change ROM Build Number - Galaxy Note

So, I've just started create my first Android ROM, for my Galaxy Note. I'm now enjoying my break from school, and what could be better then spending it developing? Well, let's start!

I've downloaded two ROMs that a friend of mine has created. He's right now on vacation, so I can't ask him.

My first problem is probably a simple one. But how do I change the "About Phone" section? I understand that I can't change the model number, or the Baseband version. But how do I change the Build number so that it shows my ROM name?

Remember do tell me idiot simple, due to the fact that this in my first ROM.