Can you post of screen shot of one of your sets of facing pages? I have a possible work-around, but it depends on the complexity of your basic layout, and the consistancy of your photo placement.
Also, what version of InDesign are you using?
Here's a way that works; it's a royal pain to work with, but may be worth it if there are lots of changes. It's really more of a klunge than a real solution.
Two text boxes that fill the page, excluding the area of the centered headline.
In one box put all items that align to the spine (as inline text items), and in the other, all that align away.
Set the alignment of the main boxes as align toward, and away from spine, respecively.
Your items will now hop into the correct position when they are moved to the opposite page.
I'm going to have to play with this a bit. I think I get what you're saying, but so far I can't get it to work. The items still stay the way they were on their original orientation, and I still get the extra master items. But I may not be doing it quite right...
While I play, is there no other way to do this in InDesign? It seems crazy to me that as layout program regularly used for catalogs, it can't do this seemingly necessary function.
Reflective Objects is a commercial plugin from in-tools.com. It may work for your requirements. I think there's a free trial. Other of their tools may also be useful. They're prompt in replying to inquiries.
I think SRiegel left out the part where the image frames need to be anchored objects to swap sides......