Yes, he acted pretty much the same. The only point that really made about the show was that the producers edited it to portray people different ways, and that many times they made people look bad or good for ratings, and what was really happening was never accurately portrayed.
During the show, he couldn't say anything at all about what had happened. However, he had a deal with a bar-owner friend of mine that he would come up to the bar for every survivor show during the season in exchange for a free wedding reception for his daughter. Everybody knew he had made it pretty far because for one, he came home so skinny, and secondly, the bar-owner that was letting him have a free reception was the "tightest" man any of us knew.