Col7777,
Yes, I have downloaded custom made emblems and when I got to where I was able to choose whatever emblem I wanted...
1) I picked my leat favorite one, AdlerKopf.tga
2) Renamed it to AdlerKopf.tga.orig
3) Named the emblem I wanted to use to AdlerKopf.tga
That is what was explained in the Readme in one of the emblem packages I downloaded, uboot_emblems.zip by Kpt_Zig, 21st Flotilla Sturmgruppewulf, and it makes sense of course. However, I'm actually using a nice Shark emblem by Church from Church_Custom_Emblems_Vol_1.zip.
Cheers,
OneTinSoldier