This will show me the image in a browser:
If the image is already on the drive you don't need CFIMAGE here. You can embed it like so:
You could also use an HTTP Path to it as well - store it at a location accessible by your web server through real or virtual directories use the tag like you normally would.
This post on cfdocument and SSL and this suplimental post on using the file system with cfdocument should help you sort it out.