All right, in that case just go to
edit your signature and use an image tag (see the code box below for how to insert an image tag) with the image you want to use as your signature image. =]
CODE
[img]http://www.someplace.com/YOUR_IMAGE.png[/img]
If you need someone to create an image for you (in other words you want to make a graphic request), then please use the
Resource Requests section of the forum. ^^