From looking at the code I see that header is flash as you said.
It' needs to be moved to a background but I don't have any idea how to do that.

Can a flash person recommend a way to embed this so it stays as a background and doesn't move to the top over other layered elements?

The only other suggestions I can make is to have your preview screen open lower and always below the flash header. Or use a static image as a background in the image and avoid the flash altogether.