Motion Editor not showing Rotation X or Y for MovieClip symbol in CS4

I'm just now trying the Motion Editor for the first time in CS4 Professional.  I've created a shape, converted it to a symbol, done an Insert Motion Tween, and brought up the Motion Editor.  I'm looking for Rotation X and Rotation Y, but only see Rotation Z.  My Publish Settings are Flash Player 10, ActionScript 3.  What am I doing wrong?  Thanks!