I have been looking everywhere possible for a an answer to this question, but can't seem to find it.
I've been using Scrivener since before 2.0 came out, and one of my favorite features has always been the character sketches. I clearly remember being able to view the character photos on the cork board. Since I've updated to 2.0, the images are only displayed as text-based index cards, despite having the photo icon selected in the Inspector window. You can see what I mean in this screen grab: