Topic on Project:Support desk

[sorry for the duplicate, editing does not seem to work, just loads to death and nothing happens]

I'm making a rather small wiki, with tutorials for a not so well known sport.. There will be ~50-100pages in the end. I'm trying to have a structure like: [c] = category, [p] = page

• [c]root
  • [c]moves group1
    • [p]move1
    • [p]move2
  • [c]moves group2
    • [p]move1
    • [p]move3

So I want to show a tree like that on the mainpage and I do NOT want to hardcode it. Currently I'm using the categoryTree extension to do this, but I can't get it to fully expand in the beginning. I couldn't find a setting for that on the plugin page, only an unanswered question asking for the same. Any idea? Also I don't need the expand/collapse functionality, something just making a solid tree of all categories and pages I have would be perfect.