Go to
Edit Signature and scroll down th beneath the editor text box. There you can find a box called
"Upload Signature Picture". Download the
"getDare Writer" image tag and upload it to that
"Signature Picture" box and upload it. Once uploaded, it's not yet visible in your signature. For it to appear, you must write
"[SIGPIC][/SIGPIC]".
It's not an official tag (hence why it's put in the signature) but those who have it usually write good stories. So you can judge yourself on whether you earned the tag.