There is a very useful feature on the "Main Index" page. Look to the bottom and see "View Recent Messages" for

"Last 24 hours"
"Last 48 hours" &
"Last 7 days".

These pages list recently posted messages in last date order with subject, forum, user, and time posted.

Check out these links to see how they work
Last 24 hours
Last 48 hours
Last 7 days