Hey, I just started playing episode 5, but I noticed that (apart from the Dangeresque glasses) none of the episode 4-items were available in the photo booth. I'm sure I got them all, I just went back to episode 4 to make sure I made an extra save game with all the costume items, but they just won't appear in episode 5 for some reason.
EDIT: I just noticed; getting the secret shirt at the bottom of the photo booth just makes Strong Bad's chest invisible. Could be a bug, could be some awesome secret, hard to tell.
I'll try redownloading my file.