I figured out how to stop the videos from disappearing. I had added a frame after the movie and put a stop command on the last frame of the video, but it didn't work. Next, I tried a go to and stop command telling it to go to the last frame of the video with writing on it and that solved the problem. Now the video stays on the word until you click to go to the next frame.
Loading time is still a problem. I have been looking at preloaders but have come to the conclusion that I don't know enough about flash to understand how they are done. I will keep searching though.
I just made another discovery that solved another problem. If the child picked the wrong answer the little guy signing "wrong" would appear. The problem I had though was that if you clicked on it before it was done signing it would flash to the game and then back to the little guy. It turns out that the button to return to the game that was in the little guy's file was not set until the final frame. I moved it to the first frame and now it works fine.
Here's the latest. (letters A and B)