In the flagpole picture, select the upper-right quadrant of the image (French flag and sky), and equalize it. You'll see that the sky consists of a single colour with some rectangular intersects. A CCD's noise floor is too high to produce large areas of single-colour, and the rectangles aren't JPEG noise - JPEG acts on 3x3 pixel grids. This image has certainly been doctored.
The centre flagpole is of a different texture than the other two (more reflections), and is apparently growing out of a mature bush, which means nobody could get close enough to raise or lower the flag.
There is no halyard on the pole, which I would expect to be there if a flag had recently been flying.
This image ([url=http://www.normandie44lamemoire.com/les%20monuments/images%20monuments/bayeuxmonu.jpg]http://www.normandie44lamemoire.com/les%20monuments/images%20monuments/bayeuxmonu.jpg[/url]) taken from a slightly different angle, suggests that the flagpole has been empty for some time, and that only GB and French flags are present. None of the other nations involved in the Normandy Landings are represented. This ([url=http://www.normandie44lamemoire.com/les%20monuments/images%20monuments/bayeuxstele2.jpg]http://www.normandie44lamemoire.com/les%20monuments/images%20monuments/bayeuxstele2.jpg[/url]) is the monument below the empty flagpole. I would be grateful to anyone who could translate it; I suspect it refers to a specific engagement.
The podium image shows no evidence of tampering. However, it's a gift shop and the flags are not behind glass. It would be very simple to remove the flag from its stand then take the picture. Why would a museum employee, when removing a flag from display, leave an empty stand?
The badge image shows no evidence of tampering.
None of the images contain EXIF headers, which are added by almost all digital cameras. This suggests that the images have passed through a photo-editing suite.
All of the images are non-standard sizes. I would want to see the allegedly-original images before passing judgement, but these have certainly been editied, possibly maliciously.
Viewing the rest of the site suggests that this guy really has an axe to grind about France.
From all this I conclude that all pro-war individuals are liars, and that the plural of "anecdote" is "proof".