It took me a while to figure this out myself. Under the brown header, on the right hand corner there is a little man icon. Click the man icon, choose preferences, then click on edit signature.
Once you get to the signature box, on the tool bar there is a little >< icon. Click it, add the html link to it and click the >< again. Then hit save. HTH!
Re: Pregnancy Brain.. Can't get Ticker to work
Baby #1 EDD 6/19/15
Married to my best friend since 9/8/13
Baby #1 EDD 6/19/15
Married to my best friend since 9/8/13
July '15 January Siggy Challenge: Snow Fails/Fun
July '15 January Siggy Challenge: Snow Fails/Fun
July '15 January Siggy Challenge: Snow Fails/Fun
<a href="http://www.thebump.com/?utm_source=ticker&utm_medium=HTML&utm_campaign=tickers" title="Ovulation Calculator"><img src="http://global.thebump.com/tickers/tt1b8e87.aspx" alt=" Pregnancy Ticker" border="0" /></a>