No, His FRIEND did it.
Any idea how many PM's we get with "my friend has..", or "my little brother did.." ??
I'm not saying one or the other, but whatever happens, everyone is of course responsible for his own game and his own pc, so even if you let your little brother play and he messes things up, it's still your own responsibility of course. So yes, rights to technical support have basically been lost.. But anyway;
A fresh install should revert everything to default status. Get rid of all the old Shipsim files and do a complete reinstall and you will have a default install, without any edits or bad files. That should work. And since this editing went sour, I would suggest you just update your game to the latest version. Sure, the big waves are impossible then, but you don't want those anyway, as it makes the whole game and all of the ship dynamics totally unrealistic. 1.4.2. is much better.
Regards,
Fred