I was able to book. Have the thunder mountain screen on another tab. I wouldn't wait for that!! I just went straight to things to do, book, filter to MK etc.
I started going through the BB site and it switched to VQ automatically, but I wasn't on it until closer to 6:30 - and I'm still on high demand page now
It looks like refreshing early (before) 7:00 was the kiss of death. Those people who left the reservation page untouched until precisely 7:00 were able to jump right in. Those of us who refreshed early are stuck in limbo.