There have been issues with product keys availability in MSDNAA. But we have a workaround here locally.
If you would like Windows Vista RTM for your MSDNAA department, please get your MSDNAA administrator to email email@example.com with the following information:- MSDNAA Subscriber ID - Your MSDNAA Administrator mailing address- How many machines you intend to install Vista on in your department for and for what purpose (lab installs, install fests, etc)
This is a temporary workaround until we have Windows Vista RTM available on MSDNAA. Thanks.