Configuring Outputs for Capture

I am trying to use a projector fixture in Capture to map a .3ds object using the final mix of an ouput from Ai.  I have successfully received the feed from Ai over CITP but the wrong image appears.  I am getting the ouput from the screen fixture which, because of the canvas editing I had to do with my layers, appears incorrect.  What I want is the projector output which is also the main output mix.  I have only gotten started on the Salvation tutorials and do not yet completely understand how I would go about achieving this result or if it is even possible.  Any help is appreciated.

Thank You,
Matt

are you just applying it to a flat surface in capture or have you imported the uv mapped 3d model?