Don't have aim I'm afraid, neither do I have Flash installed at the mo, jsut going off memory
Now, you'll need to preload the animation.
Insert two new key frames at the beginning
of the movie before the animated section (ie move it all along a few frames if need be). Now insert the following actionscript into the first
ifframeloaded(68); //--- 68 is an example only here, exchange it for the LAST frame in your movie
GoToAndPlay(3); //--- this needs to be the first frame of the animated section of the movie
And this in the second keyframe:
GoToAndPlay(1); //this loops the movie back IF the final frame as specified in keyframe one has NOT loaded
You may wish to insert a "loading" graphic in these first two frames too so the user knows what's happening.