OK, I have been having the same problem and this is was fixed it. You need to scale down the size and resolution of the photos (unfortunately) using photoshop or a photo editor. I dropped mine down to 72dpi and either 720 width or 480 height depending on the picture (keeping original aspect ratio). Is it a vertical or horizontal picture? That will determine which size you go with. Doing this to all the photos that I zoomed in on turned out to have no to little flickering. Give it a try an post your results.
I also use the flicker remover in my editor and my DVD authoring software but this never helped before scaling down the resolution of my photos. My theroy is that the compression is just too much for the standard editing software.