MyBB Community Forums

When doing a post, is there anyway to use HTML code to make a posting look better. I've looked and looked and I'm not sure how it's coded. I'm new to this so please forgive me ignorance. If HTML isn't used, does anyone know of a program I could use to covert that to whatever MyBB uses for the forums?

I believe this is what your looking for http://mods.mybboard.com/view.php?did=442

Thank you very much