I just received my free copy of Vista Ultimate today for taking part in the MS Feedback Program for 90 days. In the package was a small insert announcing that MS has recently opened a new site for Vista Help and I thought I'd post the URL here:

Getting started with Windows Vista

The insert advises that if I choose to install Vista Ultimate, I should read the installation instructions at that site. I know nothing about any of this, so I just thought I'd pass this on FWIW.