Yeah I think you are right. They were just pushing Prison Planet a lot more at the time. Then they went back to using Infowars which I think is a better name. The name was registered but they were not really taking advantage of it a lot.
Prison Planet had a forum when I saw it. It was a year or two after 9/11 so either 2002 or 2003 when I started visiting it, buying the documentaries, etc.
By the way, Alex Jones is on Friday Night Tight Live on YouTube right now: