Changing location and rotation of one player relative to another

I am almost there. I have used the example in the GPGT page 153 to @ least was able to change the location of playerB in relation to playerA, however, it seems to be inconsistent. I feel that it is moving the playerB in relation to the world axis, and not in relation to playerA b/c sometimes the player will be in front of the playerA and sometimes the playerB will be behind. I feel it has to do with the fact that I didn't use forward vector when factoring this. Here is some snippets of the code and my question:

%cl2 = ClientGroup.getObject( 1 );
      %cl = ClientGroup.getObject( 0 );

%myPosition = getWords(%myTransform, 0, 2);
		%myRotationVec = getWords(%myTransform, 3, 5);
		%myRotationTheta = getWord(%myTransform, 6);

%myNewPosition = VectorAdd(%myPosition, "0 1 0");

%cl2.player.setTransform(%myNewPosition);

what I want to achieve is code that will make cl2's player face cl1's player, face to face, right in front of him, so that I can have a base setup for animating interactions b/w the 2 players. I think I will need to get the forward vector of cl1's player in order to use this relation, but I don't know how to combine multiple vectors in the setTransform call, nor do I know how to set the forward vector of cl2's player.

Question: How do I set the forward vector and/or transform of cl2's player?