I thought ya did a great job.....I am type of person that likes to incorporate different programs and see what ya can do with them....Like in Flash I know you could import that whole .avi file and add other effects etc into the movie ..I.E. Layers and such...another cool program "Free" program is Terragen...awesome program for terrains...On my site you can see some examples of it and flash etc....
A good web site I belong to which is free and a great place to maybe show case some of your movies is on
http://www.renderosity.com/...Renderosity.com...a palce where artisits meet.
GJ keep up the good work.
P.S. and it's free...