Is the template a single animation or a collection of individual design elements?
The template is a collection of multiple elements designed to be used as a collective graphics package—much like you would see in a televised broadcast.
Each element (Intro, Overlay, Lower-third, etc.) needs to be rendered and used individually. Please refer to the help file included in the project for detailed render instructions.
Of course, all of the elements can easily be placed into a main composition in After Effects and rendered as a single animation if you desire.
You may also render the elements as individual movies and assemble them in an editing application like Final Cut Pro, Premiere Pro or even iMovie.