If you want to show a picture, first you have to find a place on the internet to store your picture,(the hard drive on-your computer won't work). Try going to http://www.photohost.org The guy there was giving out free photo hosting web space.
After you get your picture uploaded to your host site. you will have a URL address. like this. http://YOUR.PICTURE.HOST/c3/desertdawg//freepost.jpg

You will need to highlight and copy that, then go to your "profile" ( its in the menu on the top left of every CF page you see.) There you can add it to your signature, to do this you will need to click on the button. it will display a set of tags like this {img} {/img} you need to paste your URL address between them.
{img} http://YOUR.PICTURE.HOST/c3/desertdawg//freepost.jpg {/img}

You can also add any picture you want to your replies, by following the same procedure listed above...

I hope this helps, and you don't
look like this guy--->