Are the unretouched photos of the A.G. prison abuse available on the
Internet for the general public or are they available only to members
of Congress and those involved in the military justice proceedings? 
All I have been able to see have been airbrushed or otherwise censored
by the news media.

It might be difficult to find actual photos beyond what the news media
has distributed. There have been numerous instances in which British
and American troops have taken photos or video of unauthorized
behavior from AG to drunken revelry in quarters. In some instances
soldiers recently returned have simply walked into shops to drop off
film. Some film is undoubtedly held privately, but most has been used
as evidence in court martials, thereby sealing it from public view.