Here's how to do an In Forum:
1. Go to Austin's homepage by clicking his freeper name. He's over in this thread right now spewing a bunch of garbage.
2. Right under the name and sign up date on the upper-left is a series of links. "In Forum" is the third one over.
3. Clicking it gives you a kind of modified "My Comments" page that only includes comments made by that person.
Hope that helps.