llGetRot returning child prim's rotation instead of avatar's?

I have a code written to make a pointer to point towards a target since llLookAt doesn't behave right on HUD attachments. the script itself works fine if it's in a parent prim, but for the way I have my HUD set up, I can't have the pointer as a parent prim. what's going wrong is the llGetRot is returning the child prim's rotation, and not the avatar's. I need it to return my avatar's rotation.

    sensor(integer total_number)
    {
        vector tarpos = llDetectedPos(0); //target's position
        vector mypos = llGetPos(); //my position
        float tardist = llVecDist(tarpos, mypos); //distance between both positions
        //llSetText("Distance to target:\n" + (string)tardist, <1.0,1.0,1.0>, 1.0); //sets the distance to target text
        rotation rot = llRotBetween(<0,0,1>,llVecNorm(tarpos-mypos));
        llSetRot(rot/llGetRot()); //We're dividing by the avatar's rotation to correct for the avatar's rotation. otherwise the arrow will point "funky"
        llSetText("Target's Position: " + (string) tarpos + "\n My Position: " + (string) mypos + "\n my rotation: " + (string) llGetRot() + "\n where I should rotate to: " + (string) rot,<1,1,1>,1); //debugging text, hence why I know that the llGetRot is returning the child prim's rotation instead of the avatar's rotation.
    }

There is no way of getting the avatars rotation in a child prim of an attachment, as you can't issolate out the root prims rotation. In one of my scripts where the children need to know the roots local rot so they can always be turned towords the user, the root tells the children it's local rot.