That's annoying.
When MSDN was playing up the main page for each bit of software had two buttons - one marked "Download", the other marked "Get Product Key". The trouble is that pressing either button would give you an "Access error" message (it was also noticeable that aside from the two buttons there would just be file details - file name, size etc and they were all blank). Now that MSDN downloads has sorted itself out the button is gone.
I think in their rush to get the software up someone forgot something. No doubt when the blogs start filling up someone will cotton on and do something about it (Fingers crossed they do so BEFORE the weekend).