Mod is in the zip file.
the file contains a FPK file, of 2 DDS files. Pennent and ship_color...
FPKpack can be found in various places, if troublesome, try Google.
Drop either the FPK or any of the DDS files into the Custom directory from Pirates.
Forgot to mention that ship colors come out best when you have Copper Plating, otherwise, you get mostly grey with colored gun-ports.