It's closed

Further to my earlier post, the Customer Preview Program for Windows Vista beta 2 is now closed. If you received your product key before the closure, see for details of how to complete your download. But as mentioned previously, you need to do this before July 14th.

And as the site explains: "Participants will receive an e-mail message with additional information when Windows Vista Release Candidate 1 (RC1) is available later this year".