Well, I had a good poke around in your admin settings and TP settings and found nothing. It's only a couple of boards that show this recent panel though.
So give us a bit of background on your forum please, .
1: Have you had other mods installed at some point, and then removed them?
2: Have you upgraded from a different version of SMF 1.1.x for example?
3: Why did you install a old RC version of Tinyportal?
Any other info you can give to help us, help you.