I have tried to use two different vcams without success - I should probably place the error dialogs here for somebody to help me troubleshoot; short of that, is it possible to change stage size between scenes, or somehow sequence different scenes w/ different stage sizes into a single movie?
Have you tried using SWFFit (http://swffit.millermedeiros.com/)? It is no longer being updated or supported by the original developer; I do believe the latest build is really strong and stable. I'm not entire sure if it will let you do exactly what you need, but I do know that it's able to change the size of the swf on the fly.
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