Forum:Forum Question

Hello, I have a forum question. I recently added this forum index box on this page, and I am wondering why I have added a forum on one topic and edited the others, yet they don't have the message box image with the plus sign- only the Help desk does. Is there also a way to get one of these(the white box with the forum index) at the top of every forum without having to install it manually? And last of all, how do I add a forum category? Thanks, Canterwood Crest Girl Sasha and Jacob Forever!