I can only add that the site currently - October 2009 - looks abysmal. There is a lot of water in the lower rooms and floors, and I mean a lot. There is no sign of any repairs made so far, except that they painted the little tubular house on the right of the structure blistering white (afaik it was stone color until shortly).
The interior state was so bad I hardly dared to enter the structure, the main square inside the walls is also in state of decay. Some metal poles are placed to hold the outer walls up, but the force of gravity is driving them through the wall like spears, in some parts.
Sad, sad, for such a magnificent structure!