OK, I've dived a did deeper. The example files in the downloadable demo don't appear to be made from the TBX is the demo and there are no instructions I can find. But... Essentially this produces a site like the BoxPress site, so a main blogroll page, with a few ancillary pages such as an 'About' page plus an archive of articles rolled off the front page.
I commend the sheer effort that's gone into this though it's not a self-explanatory as presumed, e.g a note outside the TBX that tells you what goes where as the demo TBX doesn't seem to open with any of it's tab at the content input area (i.e. where there adds their own material). I think a short video showing how you get from adding your first a note to a newly downloaded BoxPress TBX, through export and what the result looks like can help a lot. Use requires the user to be happy with having lots of export-related Key Attributes (so you can't have the one you might normally use in your notes). The TBX is quite personal in style - I find there's too much visual noise/colour making it hard to read (but that's personal preference as opposed to functional critique). The demo (1 web page) with just CSS and JS but excluding images is >8MB. That's a lot of scaffolding though thats supports all pages, when you add more content.
@WAKAMATSU, have you tried exporting in BoxPress? It would be interesting to see what the result looks like.