Either they can't get at them or don't care. I don't know if the images used in Kerry's ad - "Courage" I believe it's called - were real or reenactments. There are pics of him in the jungle carrying a gun - quite an achievement for a guy commanding a boat, but possible - and others of him in various poses in the jungle.
I can't believe that he got that many live photos in the bush during action in only 4 months. I don't believe the press cares. They're under orders from their DNC/DLC overseers to get Bush at any cost. Guess who's gonna pay the cost if a unbelievable creep like Kerry gets into the Oval Office?