For a first job...
For your first flash, this is pretty good. There is certainly room for improvement, though. Here are a few steps that may help you create better and higher-rated material:
My first point would be to record the audio slower, as it is more important that the viewer can understand the speech of the characters. Record it how fast you would speak when talking to someone who doesn't hear perfect yet is nowhere near deaf... at perhaps a word to two words per second.
Second off, learning the technique of 'lip-syncing', or having animated characters look like they are speaking, is something that you should experiment in and look into. There are plenty of web resources, tutorials, and tip sites out there that can help with this, and it's a skill that, although being difficult to learn, can help you make great films.
Third down, there's a large amount of community resources out there to help you with getting even better at flash... I hardly know anything compared to many folks out there, and I can promise there are people who know both less and more than you about the program.
Good luck, and keep on animating!