Nope doesn't work. sigh. save games should be easily transferable nothing like this cr*p. I copied the SH3 dir in the my documents AND the full Silent Hunter dir and... nothing ! Wuh !!!
The person who "invented" this save crapola should be keelhauled.
Edit: I saved the original cfg too from when i reinstalled. The campaign that i'm playing was already in there.
I copied that one and now it works ! Scratch that keelhaul order... Nah, it's still a bad save system

But i'm happy i can play and that's what counts in the end.
Thanks for the help people.