Thanks Richard. I just meant to stress that I'm making up a lot of the data as I go along. Suggestions/corrections/wonderings are always welcome, and anything I can tweak to make the site easier to use - like this part-name change - I'll grab it. If anyone can't find something that ought to be there or can't figure out how to use a feature, speak up or drop me an email - there's either a good reason for it or an easy fix.
If you think about it, the lack of traffic in this particular forum, compared to even a couple of years ago, is very encouraging!