re-design a Flash Animation

Hello. I got an application that teaches children a certain thing. What is needed is to re-create some stages of this animation. Its quite easy and won't much time on it. Basic things that are needed: 1) make it run properly, the application some times is 'lagging'. 2) in the animation there is a hero that is giving a lecture on kids, this hero should be moving (animation on the hero) 3) there is a video inside the animation that is being played in one stage of the application, however when the user presses to move to the net stage, the audio of the video is keep being played, this should be fixed. 4) and 2-3 things of your choice that you thing that will make the animation attractive. Anyone interested please make a bid & send a message. Thanks in advance.