It is strange ,because the memory run of my computer is very hight

any way i've installed some ships of this fantastic mod but i have a question,
is the file NLL_ in the folder SEA in the DATA folder the file for the new version of the LIBERTY cargo ???
There are also some cargo in the recognition book as a MERCHANT01, MERCHANT 02 ... etc but I did not understand which files match (same for Tanker 01, Tanker 02 .... etc)