Vibrating button, only one will work at a time, please help?

i did that tutorial and thought it would make a good button. i placed a movieclip with that vibration code on it into my overstate on my 4 state button. it sort of works, but only if one button is on the “stage” at a time, and also the pointing finger disapears when the rollover state happens. anyone know how to make a button vibrate like that and actually work and work with other buttons on the same movie? (its for a menu). please help me make a button that vibrates like that on the over state. thank you! mucho appreciation