Windows_live_Movie_Maker

I'm running windows 8.1 and down-loaded "Live movie Maker". How do I know I have the Latest Version. When on look in the control panel under programs I don't even see it. When I down-loaded it I choose windows 8 and it was part of a "Windows Essential Package" and I only chose to down load live_movie_maker.  The Control panel doesn't show "Windows ESSENTIALS"  or LlIVE_Movie-Maker.  I have some questions about the program but I would like to know if I'm running the latest version for windows 8.1. Also how do I upgrade the program, will it be part of a normal scheduled windows update.