Got a mod for adding an emblem:
http://www.filefront.com/15935129/Custom-emblem.zip/
Just extract into JSGME "mods" folder, replace the .dds in there with your own (make sure you name it the same and leave it in the same location), and enable.
.dds name is "CustomEmblem.dds" and is in "..\data\Textures\Tnormal\tex\emblems" inside the mod's folder.
Probably won't work with other emblem mods. Name and info don't display in-game but shows up fine.