STOP!
Don't do any more work until we can sort this out.
This story is good, the art is good and a lot of work; the animation is relatively basic, but it still takes ages; the sound is good and the voice acting, though not perfect, is pretty good...
... but its begin wasted if it doesn't come together to make the film you are capable of.
Though I want to know the story and see more, I say you do something completely different in the way of animation for a little while- just a short- and practice your skills, things like fbf etc, then drop back into this refreshed and ready to make this series GO!
Study my previous reviews, too. I'm spending time with you because JT Movies is worth it.
Learn more than I know about file size and optimisation. I am no flash expert, but I know that big file sizes can be helped using other programs and techniques.