Not bad at all!
Good job my friend. I always get scared when I see sprite movies because I'm a fellow sprite animator and I’m always worried someone will bring down the quality of sprites in the eyes of most NG users. You did a good job of keeping that quality up.
Now to make it better...
You should make everything bigger. It’s a little hard to read the text or make out some of the detail that you had. Also pending upon the resolution of the views computer your flash can be very difficult to view.
Your dialogue had very funny moments but it can be paned out a little bit more.
Also, most important, you have to compress your sound files. A lot of people with a 56k connection will vote on your flash without viewing it if it will take forever to load. So either compress the files, or make it long enough to justify having such a large file size.
Anyway, great job on the flash, I hope you take what I said as constructive criticism. Good luck!