Hi cecd1958,
I have moved your post here, as this is the proper forum for it.
I suggest that you visit the link to the Solutions post below. It gives information on how to add and edit a signature that automatically appears in all of your outgoing e-mail messages.
http://windowslivehelp.com/solutions/settings/archive/2009/03/03/how-to-add-a-signature-to-outgoing-messages.aspx
If you are still unable to add a signature to your account after following the steps in the solutions article, please exactly describe what happens.