The aircraft in the lower-left corner of the Dessau image:
http://www.flickr.com/photos/2455401...57609636214338
looks to be a B-24 (correct engine placements plus fat body and round tail shadow)
Still looking at the other mystery "?" aircraft, current hunch is it could be a Si 204 or Ju 88,
Great images, thanks for sharing,
Cheers,
Chris