Hello Thomas, Phons, Thank you for your interest.
The stationery, (a reusable saved message as draft) allows you to add an image as background or inside the message easily. Do not know how to do this with a template and looks like the template only supports bmps at the help window not the message itself; I have to read more about templates.
I will review the http://www.pegasusmail.nl/ site and check the tips (template) section.
Thank you, Juan Manuel