Check-in to Your Profile > Product (767 Captain (767-300) Base Pack [FSX]) > Get Free Liveries

Doing a search using "japan" as the keyword, I got 3 repaint results:
Japan Airlines 767-346F/ER Freighter by David Sweetman
Japan Airlines 767-346/ER by David Sweetman
Japan Airlines 767-236 by David Sweetman
They all should be available for download from Avsim.

Doing a search using "jal" as the keyword, I got one 1 repaint result:
JAL New Colours by James Littler
This can be downloaded from captainsim.com.

Doing a search using "sas" as the keyword, I ot 1 result:
SAS Scandinavian Airlines by Krzysztof Ber
This can be downloaded from captainsim.com.

I hope this helps.