Personally, I think uploads should be a sub forum of 'Tutorials', called 'Example CAP Uploads' or something like that.
There are so many threads on the Uploads board, proper tutorials would soon be swamped by a multitude of small demos, examples, support requests, etc. I really like the fact that only proper tutorials tend to end up on the Tutorials board.
And while you're at it, why not rename 'Tutorials' to 'Learning Construct' - that way it makes more sense to have a mixture of tutorials, tech demo, examples, etc.
My proposal for the forum layout:
Construct forums
Help & Support using Construct
Construct Discussion
Learning Construct
Addons
General
Your Creations
Open Topic
Developers
Construct Engineering