Actually, what I'm seeing is that when I go to the homepage, I see the message boards as though today were 5/1/03. So the initial view would show messages from 5/1/03 and up to 5 days before that date.
What's weird, though, is if I click on the show topics up to 5 days old, it does the query, and redisplays the thread page, but with the correct dates. Also the font appears to change (gets smaller, possibly different font.)
But the first time I pull up the page, the site appears as though it were 5/1/03.