We do trophies too,and I have been looking for tri folds as well. I am not an expert on the computer and can't figure out how to format things in a tri fold. I have found a site that has some great things for each of the 3rd grade stories, however.
Click on Teacher Resources, then the Red Binder Pages. There are some great graphic organizers beginning with the "Rosie" story. Any of these could be used in a tri fold, if only I knew how to make them!!!
Let me know if you find anything else in the Trophies series.