You can download the Carousel v1.3 interaction below:
Carousel.zip - This link has been deactivated. New Update 1.4 released on March 29, 2010 can be downloaded from here.
When the download completes, extract the Carousel.artpkg file and double-click to install.
The Carousel Interaction will be available from the Articulate Engage Community Interactions dropdown when creating a new interaction.
Be sure to post back a link with your Carousel Interaction in action!