To format your forum posts, use the tools in the editor box. There are buttons to make your text bold, italic, underlined, and strikethrough. You can also move your text around with the justification buttons. You can make bulleted lists with next button over, too. If you are familiar with HTML, there is an HTML editor too. The button on the bottom left that looks like this: < > will take you there!
NOTE: If you have copied and pasted from a different program, or a website, your text will remain in that format. You must use the HTML editor to change it.