From the beginning screen, select "Make Movie" (the one with the scissors)... click the "Browse For media" blue circled button with the magnifying glass and the folder... browse to and select your video... when you return to the screen, drag your video to the timeline. click NEXT. Click EXPORT. You will be presented with a "select a template" drop-down menu on the top right... select the one you want... it may take a while... If you can't follow that one, I can answer further questions. Good luck, man.
