Further to my previous question, which I now withdraw, my application has mysteriously started working.
See
http://www.jeremyrusselltraining.com/MyLoginV7I've changed nothing that I can think of - I called Lunarpages about an hour back to ask for the version of Resin on the server assigned for my account (2.1.13) and I did ask LP support to include my account in the permission changing cron job [ done yesterday ], so I could clear up unwanted directories.
Otherwise, what wasn't working now is ... kind of strange and also disconcerting, since I'm not sure what I can/ought to do to resolve similar issues in the future.
Does anyone have any clues to what may cause such mysteriosity?