XML gallery help!

HI there,
i was looking for a different type of xml gallery where in the

The left navigation bar
have the client list

                                           where as in the right side 
                                       there will be a image place holder.

On Clicking on clicking one of the clients for the navigation bar I want to load a specific image to the image place holder which is in the right side of the page.

And all I want to do using xml and flash, please help.

I have attached the diagram.