Do this test. Start the movie (the movie has to be running), and then type in the Message window:
--
put sprite(1).scriptInstanceList
--
You should get the answer something like:
-- [<offspring "Automatic Model Rotation" 1 2460dc>]
If so, then type in:
--
put sprite(1).scriptInstanceList[1].pSpeed
--
You should get the value of pSpeed (the rotation speed).
Let me know the outcome of this test.