Bob, the option for admins to correct photos is not available, and I was not even aware that it ever was. I have asked the option to be introduced with the site revamp, but we have to see what happens. It seems to be more of an administrative issue, where it would be necessary to give the improved photo the same number as the one originally posted, so that comments, if any, stay on the site.
So far I have not received any reply from Babur, but I will keep you posted. I think it is important to keep members on board that provide coverage of areas not very well represented on the site.