How to install Sanguino board to 1.6.2

I have a sanguino board and I can't get it in to 1.6.2 IDE visible in boards-menu. I have tried to put the drivers into C:\Program Files (x86)\Arduino\hardware folder (worked with previous IDEs), not working and %AppData%\Arduino15\packages\arduino\hardware\avr\1.6.3\cores folder with no success.

Of course I could use older IDE, but this can't be so hard, I have to miss something.

Please help, Jyri