Complex Button RollOut/RollOver Effects

Hi People.

Ive been following the tutorial: http://www.kirupa.com/developer/mx2004/button_effect.htm

Couple of questions

1. Im wanting the button movieclip to play a certain part of a different movie when on the roll over state… can anyone help me find the best way of doing this?

2. Im also wanting the button to play an external swf in a container mc: http://www.kirupa.com/developer/mx2004/transitions.htm
can this done using the button mc.

Im pretty new to this actionscript business…

please help’eth.
keljnr