one final update on my daughter's trip..
as i mentioned, when she booked her room late (at about 90 days) there weren't any ADRs at all at MK and DHS and none of the 'good' ADRs at Epcot and AK. We definitely thought she was screwed!!!
But i stalked and stalked and got her absolutely everything except akershus by the time she and her husband left for WDW.
and then, in the middle of her 14 day visit, she asked if i could change one of her lunch ADRs at epcot.
So i went into the system to book her either rose and crown or san angel, when what should pop up but the elusive akerhus.
This was an ADR for 2 days away.
So of course i booked it instantly.
So yes, even when you're there, you should keep checking if there is an ADR that you really really want.
By the way, they really enjoyed akershus - they didn't like the food very much, but they loved the princesses and the setting. Oh and the server was outstanding!!
anyway, bottom line, don't give up!!!