http://files-upload.com/156983/RitaH...skPic.zip.html
The download link is at the bottom of the page on the above link. Replaces the stock captains picture on the desk in Pearl Harbor with a picture of Rita Hayworth from some time during the war.
Here is the image
Here is what it looks like ingame
Backup your old "pictue.tga" then unzip to C:\Program Files\Ubisoft\Silent Hunter Wolves of the Pacific\Data\CaptainPicture