email template

Hi, I would appreciate if some1 can tell me how to modify email templates please? Currently, I can only see my order_conformation.tpl under mail folder but I need to add/modify other templates when order status changes from pending to proccessed....... and so on. Thanks

Dear evertekuk

I thing its little bit late to reply. any ways....
Your can find the order email template here. And controller for this template here. Thanks
Waseem