Well I've just taken the Configuring Windows Vista beta exam and thought I'd give a little review.
I had 56 questions and 4 hours.
Main topics covered were Windows Defender, Windows Firewall, Configuring Wireless connections, UAC & Parental Control, Windows Backup, IE7, upgrading to Vista from previous versions, Windows mail, calendar and Meeting place and a few tablet-PC questions.
The format was mostly multiple choice and I got one question that I had to select a hot spot.
The exam seemed quite straight forward but there were a few MS cryptic-kinda questions which I had to re-read a few times just to make sure I knew what they were asking of me

:P
My only preparation for this exam was installing RC1 on my desktop at home

:P Hopefully that will have been enough

Anywayz, I will get my results by post before the live version of the exam is released, I'm keeping my fingers crossed!