I talked to the 'online concierge' and they are clueless about this release.... she said the 'pre-compiled' error is a known issue and they were working on it. She said they'll know it has been released when it shows up on the download page.
I've tried downloading overnight twice now. Each time it aborted with a fatal error (first time at 66% complete, second at 88%). I never had any problems with the old MSDN download manager. What a waste of bandwidth. :(