How did you find it so quickly? I tried seaching my name but 15 minutes and I was still in 2005.
http://www.freerepublic.com/focus/user-posts?id=27113;more=8800000and cycle through that number at the end. That number is kind of the Free Republic's index of all articles incremented every time an article is posted. But in this case all but your posts are filtered out. So you increase the number to go forwards in time and decrease to go back.
I was helped out by the fact that you weren't posting replies that often back then.