Like most people are saying, there should really be a section of just tutorials. Even if there isn't the stickies in, say, the Pepakura creation section should be in the order they would be used. So the first tutorials in the list would be on pre-pepping/scaling, then printing/scoring/folding/gluing, then resining/fiberglassing, the bondoing/detailing, then painting/wiring, etc... Also, I feel like the pepakura download hub isn't worth anything as is. It's a fantastic idea, but there's just not enough content there. The pep wiki is significantly better than the download hub IMHO (even though they have basically the same files). Also, maybe adding the ability to add files to the download hub, since there's so many files all over the place, it'd be a pain to search through all the topics looking for them. Just let the users add them, and review hub submissions before they're actually put up.
Just my 2 cents, but what do I know? =P