how are my staff so useless
He said from his comp.
Well, what you do is you go to your userCP, edit signature then under the text editor box you will see 2 options. one is to get an image from a URL such as imageshack. the other will let you browse your computer for an image. browse, select what you want, then click save changes. The page will then refresh, and all you have to do is click insert signature picture (it will be a text link next to the image you uploaded.)
it will then add some code to the editor box, so after that just click save changes.
And your done. If you still can't get it working, come ask me or another admin (red usernames) and we will help you out.