The SWX PHP 1.01 server by default serves the resulting content as an attachment; this is an incompatible method for the newer flash versions, which require the content to be served as inline.

For more information please refer to: http://www.adobe.com/devnet/flashplayer/articles/fplayer10_security_chan...

A quick hack would be to replace in SwxAssembler.php the following line:
538: header('Content-Disposition: attachment; filename="data.swf"');
with:
538: header('Content-Disposition: inline; filename="data.swf"');