How do you get the hydrophone hunting tutorials to work

[Sea Hawk]

I use SH3 v1.4 without GWX (I might install it when I get the hang of altering games)

I am trying to load the hydrophone hunting tutorials.
I have downloaded and exported the files from winzip.

I have followed the following advice:-
Copy the training missions to SH3/data/single missions/english (german/french)
Copy the Sound folder to SH3/data/sound in order to replace the GWX propeller sounds by the stock game sounds.
SH3/data/cfg/contacts.cfg should be replaced by contacts.cfg attached to this tutorial, as the distance reporting used in GWX is not
applicable for methods demonstrated in this guide.
Copy SH3.sdl to the SH3/data/sound

The game crashed whenever I tried to load the training missions.
I tried just doing the following:-
Copy the training missions to SH3/data/single missions/english (german/french)

Still the game crashed.

Can anyone help me out there?