There is also a poll: http://therealljidol.livejournal.com/1032526.html
"Is it possible for the Jury NOT to award immunity?"
Yes. It's possible. It's only happened once though, with an in unbreakable tie (more than 2 rounds of not being able to break a tie) or a majority of the jurors submitting a "No Immunity" ballot)
"what is the Legacy Advantage?"
It's a advantage that gets passed down when someone is eliminated, to be used at a certain point in the game. You know it was passed down at least once. But not who has it. The person leaving gives it to someone before they leave.
"How do you get to be so awesome?"
It just comes naturally.
Anything else you want to know?