I don't know where to begin. I have tried some tutorials but I can't ever get one to work. This program is so complicated.
I have a file from work I can e-mail someone as an example. Can someone tell me how it was created? All the layers only have one keyframe. Where are the edits/tweens?
Each layer could contain a movieclip, which might in turn have animations built into them, or there may be code that manages all the animations. You need to dissect whatever file you have to try to find what's in in. Try going thru the symbols in the library to see what makes them up. You should consider some formal training if you aren't comfortable with exploring how files are designed.