Hi,

Have you tried to Render it as an uncompressed avi. Go into the Custom > Default Template (uncompressed) > Video tab and make sure that "render alpha channel" is selected.

When you use this file again right-click on the rendered clip and under Properties/Media/Alpha channel, in the drop-down menu, select "Straight (unmatted), instead of the default "None".

This is how it would work in Vegas, it may give you an idea of how to work in with Flash.

__________________
Gordon
www.learningvegas.com