step 1.
go to the internet
step 2.
go to google search
step 3.
write what you want ( Star Trek or Star Wars or whatever you want logo)
step 4.
save the file you liked the most to your desktop
step 5.
change the picture name to racelogo or raceimage with 25 or higher number and the end is .png (important)
step 6.
put the picture that now named raceimage68.png or racelogo46.png (the number is not important, but it must be over 25) so put it in ?:\Program Files\Stardock\TotalGaming\GalCiv2\Gfx\Race
step 7.
get in the game and choose that logo or image from the custom race or any race civilization screen (the one that you pick abilities, name of race, colors etc.)
and you finished...!
if you want a logo someone made please go to the GalCiv II library and search for Race Logos.
hope it helped,
-Master U