Got an early question for you - although it's a very minor aesthetic one.
I noticed there is quite a bit of dead-space between the formal debate forum and the others/bottom border under the "life" subcategory.
I think this is because admin has selected all moderators to moderate the forums. By default, I guess vBulletin pastes the list of names to a single cell within that table, and puts them all on their own row (which resizes the cell if the list is too long).
What happens if you create a new "user group" under the vbulletin CP called "Moderation team" and list all your admins in it. Will it show up as the name "Moderation Team" in that cell, or would it still list everybody's individual names? This might be the solution to the problem.