In the Legacy GM screen in the "DX Adjustments for Physical Attacks" section,
which does include some bonuses for missile weapons so it is not excluding thrown or missile, it states "
Striking from enemy's rear +4" and "
Striking from enemy's side +2".
Striking to me is rather clear. It is not throwing and it is not missile attacks.
Thus I would not give facing bonuses to thrown weapons.
(BTW, we have argued this before and I came down on the other side back then. I have played it both ways and the above to me makes the most sense.
http://forums.sjgames.com/showthread...=163082&page=2 )