If you're using Windows OS, you should be able to get to them from the screenshots folder inside the COh directory.
Usually that is C
rogramfiles (X86), City of heroes, Screenshot
or somewhere in that neighborhood
Writer of In-Game fiction: Just Completed: My Summer Vacation. My older things are now being archived at Fanfiction.net http://www.fanfiction.net/~jwbullfrog until I come up with a better solution.
Found it, thank you 
I've done it once years ago and now have forgotten...."How do I access the screenshots I've taken in the game? Is it a command change in the Shortcut Properties?"