I am looking at this right now, and when I use my computer, it seems that there are ways to make it go back. But I can see that it wasn't working for you (and I couldn't find it sitting beside you). I'll need to do some testing to see if there is a problem that just needs a minor fix, or if there is a function I will need to add in order to have ways of going back. While it "develops" as a tree with a single root, I'm not sure how best to do the "breadcumbs" as it won't nescesarilly be that you can only go one route from the root to a given page. In fact, I believe currently there are at least a few that will allow you to get to in different ways.