Your images will not show up when you paste HTML code from Dreamweaver or Microsoft Word, because they are still being referenced to a location on your personal computer or your webhost. If you have a website, and have FTP access, I suggest you host the images there, and reference them correctly.
Here is an example of a properly referenced image:
<img src="http://www.yourwebsite.com/images/yourimage.jpg" />
Or, if you are using our template editor, you may upload the image(s). Click on the icon that is next to the anchor. This will bring up an upload utility.