Premiere Alpha Channel Support

[Rick]

It appears frames are passed from the timeline to the winmorph plugin.
Is there anyway to preserve the alpha channel of the frames? For
example, I 'resize' photos using the motion controls to put them on a
background (different video track). When I create a morph transition
what should be passed as alpha is passed back to premiere as black not
transparent. Any suggestions would be appreciated.

Thanks,
Rick