Well, I'm new, but this worked for me: Try the
Insert>Animation menu choice -- you can start another .SWF file,
on a slide in a Captivate project -- including an SWF created by a
different Captivate project. Is this what you want to do? It
appears that the "player" frame in the flash-within-a-flash doesn't
work, and you probably don't want it anyway, so when you generate
the content flash, you'll have to generate it without those
controls.