This video describes how to configure the MoviePoster Plex plugin to display the poster for currently playing media on your MoviePoster display. The Plex Plugin supports Now Playing status for Movies, Music, and TV shows.
Note: MoviePoster is in no way associated with Plex. Features of this plugin are implemented using the Plex API, which may change and cause certain functionality to stop working.

MoviePoster Version 2.3.0.5 can be downloaded here:
http://movieposterapp.com/download.html