Don Linden's camera control script

In Don Linden's camera script, these are the parameter values for view from behind the AV looking in the direction the AV is facing. What would I need to change to achieve the same perspective but from in front of the AV looking at what is behind the AV?
llSetCameraParams([
CAMERA_ACTIVE, 1, // 1 is active, 0 is inactive
CAMERA_BEHINDNESS_ANGLE, 45.0, // (0 to 180) degrees
CAMERA_BEHINDNESS_LAG, 0.5, // (0 to 3) seconds
CAMERA_DISTANCE, 8.0, // ( 0.5 to 10) meters
//CAMERA_FOCUS, <0,0,5>, // region relative position
CAMERA_FOCUS_LAG, 0.05 , // (0 to 3) seconds
CAMERA_FOCUS_LOCKED, FALSE, // (TRUE or FALSE)
CAMERA_FOCUS_THRESHOLD, 0.0, // (0 to 4) meters
CAMERA_PITCH, 20.0, // (-45 to 80) degrees
//CAMERA_POSITION, <0,0,0>, // region relative position
CAMERA_POSITION_LAG, 0.1, // (0 to 3) seconds
CAMERA_POSITION_LOCKED, FALSE, // (TRUE or FALSE)
CAMERA_POSITION_THRESHOLD, 0.0, // (0 to 4) meters
CAMERA_FOCUS_OFFSET, <3,0,2> // <-10,-10,-10> to <10,10,10> meters
]);

I've been looking at camera functions myself today, actually

A combination of it being very late here (thus producing blurry-eye syndrome), and not being 100% confident on this just yet (new to LSL), means that the best help I can offer is the following link heh..

http://secondlife.com/badgeo/wakka.php?wakka=FollowCam&show_comments=1#comments

I have read that section several times, however, the explanations or terms used do not make it unclear to me how to get what I want. In the example I gave in my origianal post, the camer is above and slightly behind the AV looking in the same direction as the AV. What I want is to move the camera postion to be above and slightly infront of the AV looking in back of the AV. I have tried to get there using trial and error, but it has mostly been error.

I have tried changing just about ever follow camera parameter that seemed even possibly related to the angle of the camera and its orientation to the AV. I get all sorts of views but not what I want. Surely, there is a set up that will have the effect of moving the camera in front of and looking back toward the AV, the reverse of the normal view for driving a car.