Last year's documentation will not be useful for the new control system (with the possible exception of some of the Victor speed controller manual).
The specific information you want is not yet readily available to FRC teams at large. Team 1629 (the Garrett Coalition) in Oakland, MD is one of the Beta Test teams for the 2009 FRC controller. They should be presenting something helpful in the area.
Team 1714 (More Robotics) in Milwaukee, another Beta Test team, is doing a presentation tomorrow (Saturday, November 1) at 1:30pm Central Time. It will be viewable online. See
this thread for details.