Tracey
Go to User CP -> edit signature andpaste the following string into the your signature section:
{img}http://members.cox.net/disneyvacationclub/images/dvc_sigs/ssr2.jpg{/img}
Substitute square bracket '[' for '{' and square bracket ']' for '}' in the string. I would have done it, but then the image would have shown instead of the directions.