Thanks for trying to help but I do know how to add an image to a form and use it as a submit button in the source code (html) but I haven't got a clue how to do it in Dynamic HTML Editor.
Maybe it's not possible in Dynamic HTML Editor but I want to make sure.
Martin the only way I can see is to export your page, edit the html and then use the html tool to import the edited page back into Dynamic HTML Editor.