Manual says I can use any animated gif on Photostory from teh internet or own collection. How do I insert them into the show? Can they only be used as additional slides or can they be used in an existing photo like clipart?
You can bring in animated GIF files just like any medium (e.g. still photos, audio files): Locate the file in the media pool (the built-in file browser) and drag & drop it down into the storyboard/timeline in the lower part of the screen. It's behaves pretty much like a little video clip, except that you can actually grab it by the little, lower right-hand handle (in timeline view) and stretch it to extend the duration. This will basically cause the GIF to loop repeatedly.