Thanks for having such a user friendly plugin that's also easy to modify graphically.
Though, not to be a downer, I did have problems pulling in a thumbnail, as well as display custom content using just an image (...all it showed was the URL). That being said, I'm using Rotating-Posts in my sidebar by using the WP Text Widget and placing the [rotating-posts] into it.
I was able to work around it, but I wanted to make a note of it.
Thanks again!