Gary7, if you want to update your photoshop, and it is a nice update, then do it through a new caption. Leave your old one on line. Otherwise you leave folks like 26138 and me in the lurch. I had to go back and edit my post to include your new picture.
Another option is to leave the location and/or title of the new photoshop the same as the old one. Update the picture but don't change the IP address. I know I can do this with Village Photos. I'm not sure about Image Shack.
Just a suggestion.