pretty fancy web site for someone who can't italicize... ;)
use html code:
<i>this text will italicize</i>
most html codes work the same way...an opening 'tag' and a closing 'tag'. try <b>for bold</b> and <u>for underline</u>
don't use underline. because people (the stupid ones) will think it's a link and spend all day trying to click it.