I was also involved. I did not need to do a training, and my group was in a prediction market, so it was a very different group. The data should be available once the papers are published; that may take a year or two. (If you're a grad student, at least, you might be able to ask for the data for writing your own papers- when I talked to one of the organizers, he seemed to think that it could be worked out.)

IARPA is the intelligence version of DARPA, so they were in fact interested in the types of questions that intel analysts would face. On the other hand, the places where prediction is useful is not at all limited to these areas, and GJP is interested in extending that in the future.)