I am no expert as you know Phil (but learning fast lol).
The page you say its displaying is the one the OLD test site is now presently showing. I am thinking even though you have deleted all that stuff, it could be holding onto something.
BK 1.0 was having a small problem earlier but is fine now.
It does look like it may have something to do with that old URL maybe. This is just a thought as i have seen nothing by anyone else about that particular problem. Maybe Fencer could help.
(hide) If you don't want other users to know what you are doing you can change into cloak mode in Settings (paying members only). (pauloaguia) (show all tips)