I feel your pain, brother! :rotfl:
Take a look in "SH4 Fleet Boat Mods Workshop" -
http://www.subsim.com/radioroom/forumdisplay.php?f=219
As this is written, it's the seventh sticky thread from the top and named
[REL] Run Silent, Run Deep - The Campaign
And here's the direct link:
http://www.subsim.com/radioroom/showthread.php?t=123467
Happy Hunting!