Newbie looking for script for Entourage


I have an application (FMPro) that makes mail-messages in plain-text format and puts it in the Outbox-folder from Entourage.
Now I want to insert a specific image in every mailmessage.
So the script has to do the following for every message in the Outbox folder:

  • set the email to HTML
  • insert the image

Who can help me?? Thanks in advange!!