A HA!
found it:
III. Editing
After posting a message, you may want to edit the message. To do this, navigate within the forums and locate where you posted your message. At the bottom right of the message, there will be an Edit link. Click on this link. The Edit Message form will appear. Below is a list of the fields on this form and their descriptions.
Above the message box, you will see a toolbar with symbols like "B" and "I". This toolbar allows quick access to bolding text, changing font to italics, underlining text, and putting links around words/sentences.
Field Description
Message Title (this will only appear if your message created the thread) the title of the message
Message Body the body of your message. Below the message body box, there is a link that explains how to use HTML in your message posts.