Movieclips and depths?

hey all,

having a problem with my mc’s and there depths i have 4mcs on one layer on the main timeline.
i want when a button is pressed for that mc it is linked to be on top of the other 3
as it shows a transition.

if anyone has any ideas on how to get this working it would be greatly appreciated.

*i am using flash professional 8

thanks in advance peeps :slight_smile: