I'm currently in the process of going back through old posts and editing them to include the new categories so that they can be more easily found by sorting. I'm trying to knock out about 50 or 100 a day, but there's a lot of them and I wanted to encourage everyone to click on their names, look at their old posts and edit them themselves - its a really great tool for all of us, but it only works if we categorize the threads in the first place.