Seeing such a diagram delights me. I need help. The author has put in an impressive amount of work, though gets oddly annoyed by the inaccuracies in the changing designs. I only say "oddly" because the TARDIS is famously broken, and in particular, the part of it that makes it look like a Police Box is broken. So it makes perfect sense that it can't quite make up its mind.

Oh dear, I've said too much. I mean, er, here's a bunch of blue boxes. If you're into that sort of thing. Heh.