I don't understand all this Limewire jargon. I took a look at the glossary, and I didn't understand it at all. So can someone please explain to me in simple, clear, and specific terms...

What an ultrapeer is?
What a leaf is?
What it means when it says in the connections section "Connection status: ultrapeer"?

I told you my questions were n00bish. But I want to know and understand and stuff. Yes, I did see the glossary, faqs, etc. but they helped me none.

Edit: I see this question has been asked a lot. I've looked at other threads about it and well, they don't help me either. I'm still so lost it's not even funny.