Chat order is a simple application that brings order to all of those chat files that iChat creates. Chat order creates a subdirectory in the iChats folder for each person you've talk with. It then moves all chat with that person into the folder, keeping them nice and orderly.
I hope Brian didn't have much work writing this small app, because it won't be a surprise if Apple implements that in iChat 3.0 in Panther, or something even better. The way it works now it's simply pathetic.