How do you do this effect

Does anyone knowhow to recreate this menu effect. Thanks for the help guys.
http://www.rhubarbmedia.co.uk/rhubarb/index2.htm

Where's the effect?

Or do you mean that simple onMouseOver "effect"?

on(mouseOver){
make_it_bigger();
}
on(mouseOout){
make_it_smaller();
}
and use some nice math-fnktion to work (like current +=(final-current)*0.1)

If you're talking about the rotating 3d menu in the section "our work",
look up some open Fla's in the movie section:

http://www.flashkit.com/movies/Inter...enus/index.php

Keywords should be "rotating", "menu", "3d"