File Mapper -- ability to see a tree or other representation of files (documents) and their relationships

As a non-techie user (http://labyrinth.xwiki.com, http://lifecenter.xwiki.com), I am probably making many errors in the organization of my documents, 'spaces' (I still don't have a clue what a 'space' is, on xwiki, and the documentation hasn't helped), etc.

What I'm lacking is a way to see an overview of what's going on. Currently, I use 'What's New' to find files I created and want to integrate into the linking structure of other documents. But that's going to get more and more confusing as more users get involved, and the 'spaces' grow and multiply.

In a nutshell: more navigation and management tools.