@roblaf,
it's here:
http://www.subsim.com/radioroom/showthread.php?t=233626
Go through the 4 first posts and download.
The installation goes with JSGME (Mod Enabler) which you install in the SH3 game directory, then you install the mod in this order in JSGME (drag and drop to the left-side of JSGME):
-WarAceCampaign 5.0
-Patch 5.01
-Campaign (Atlantic_Baltic or Mediterranean)
- Optional: WAC5.0 Full_interior (doesn't work in campaign !)
- Optional: [your chosen optionals from the optional downloads (winter harbors etc.)]
-Widescreen GUI Mod
- Optional: WAC5.0_No_Dark_Night (still dark but acceptable view at night)