I don't see this anywhere, and it's not included in the response, or start a thread buttons, but here is some basic vbulletin code for the following
bolding text
to bold text, enter the following: [b*] enter your text here [/b*] (remove the stars!)
italicizing text
to italicize text, enter the following: [i*] enter your text here [/i*] (remove the stars!)
underlining text
to underline text, enter the following: [u*] enter your text here [u/*] (remove the stars!)
you can also add color,
Tammy's site rocks! Urls, etc :)