I would like to create a form using an image and adding a submit box on top of the image.

Very simple but Icannot figure it out in Jotform. I want an email submit button on top of an image. Thats all VERY simple.

Do you want to set a background image in your form? If that is the case you can do it through the form designer: https://www.jotform.com/form-designer/tuts/episode10/ 

Example:

If you want to set a image on the submit button, then select the button field, and add the image in the above option:

Let us know if you need more help.