From SME Server
Added text about templating categorisations at top of page
While there is quite a lot of work to move all the existing pages into this structure particularly the howts and contribs, once done most of them would be reasonably static so trying to template the categorisation as has been suggested might be a bit over the top and more hard work than it is worth. Every page would still need altering initially to template them.
The category tree is created by putting Category refs to the parent category on the sub category page as if it was an ordinary page.