Hi and welcome solidchrome, nice to see a fellow Paddy on the forums.
Unaware of such a mod for Sh5 - I know there was one that changed the flags to realistic versions.
Might be best to ask the question in the modding forum:
http://www.subsim.com/radioroom/forumdisplay.php?f=249
You could always change the graphics in a paint program at worst case.
