SP, you either need to find a vimeo video & upload the file the the level editor, or you make the animation in Flash/FlashDevelop & upload the SWF file. So there isnt really an online editor.
Game description: Your take an animation/video, Divide it up into Pieces, which get scrambled around the screen. You have to move the pieces back in place. Its preety cool if the animations are cool. the Animations are sometimes interactive too,