I want to change the folder where my screenshots are saved in XBMC.
The location of the menu option to change this setting is as follows:
System > Settings > System > Debugging > Screenshot folder
Changing the value for this menu option will alter where XBMC saves the screenshots taken inside the program. If for some reason that this option does not appear try changing to another skin such as the default skin Confluence, then revert back after the changes have been made.
The screenshots by default are saved as png files, with a file name in the following format: