Vince: I got the new forum running today (it was when you posted as well). Everything's sorted by the date a message was added to a thread. So if message number 10 had a message posted today, it would be at the top while message number 125, which hasn't had a message since December, would be down lower. This seems to be the most popular way to sort things.

The date was only switched today from DD/MM/YY to MM/DD/YY - this was one of the changes in my new program.