Their system's apparently completely different this year, so they're trying something new: (quoted from an older thread)
"Registration for the January 25 and 26, 2008 administrations of the MCAT exam will open Tuesday, October 30. We have upgraded our scheduling and registration system to manage a larger load of users on the software, which means that we are not planning a regional opening this year. Although our system will be able to handle a much larger load and our upgrades are based on data from last year, we cannot perfectly predict the number of examinees who will want to be on the system at any particular time. Therefore, to be safe and to avoid a rush to the system, we are not announcing a specific opening time for the 30th."
By the way, streetlight, I just got the same message as you. I don't think registration's actually open at this moment, but I might stay up just in case.