I am not exactly sure how this passed judgment, but let me say that this was completely uninspired. I doubt you took longer than fifteen minutes to make this.
Here are some helpful tips:
1) Don't make sideshows. You can just as easily do that with PowerPoint. I like to think that we, on Newgrounds, are better than that.
2) Write better.
3) Use the line tools so that your artwork is composed of vectors. Not only is the paint tool harder to work with, it increases the amount of vectors more than a tenfold, thus increasing the size of your flash. Not that the file was too large, but if your were to work on a real project, you'd need to start using the line tool.
4) Use audio from the audio portal. 'Nuff said.