This is now open to bookings for 14th October 2007 for AROC members at £105. See the AROC website under Track Days. Perhaps someone less hamfisted with their computer can set up a hyperlink. Here's hoping for as good a day as the 2006 event.
The event was sold out a couple of months ago, but spectators are welcome to come along and watch. There will be 90 Alfas (classic and modern) out on the track. Bring a crash helmet and you might be able to blag a ride.