Check out this thread for MANY desktop pictures for use in the US Fleet Boat Office:
http://www.subsim.com/radioroom/showthread.php?t=124851
and this thread for swapping such pictures; there are separate Applications for US Fleet Office and Kriegsmarine Office...."Girl in Every Port" and "Fraulein im Jedem Hafen":
http://www.subsim.com/radioroom/showthread.php?t=121154
(Note that in the Kriegsmarine office the *.TGA picture files are sized differently, but the process od substitution is the same)
Here are some German pics, mostly Marlene Dietrich but also other German actresses of the 1930's and 1940's time period, which I use with FIJH Application:
http://files.filefront.com/KaluensFr.../fileinfo.html