Should be simple alpha fade

I have this file where the squares are buttons and when you rollover they fade in and out creating a masking effect. I want to change it from a rollOver to each one fading in one after another. This should be as simple as changing it to instance.gotoAndPlay(2); but I cannot get this to work. Can someone plese check this attached file for me and help me figure it out? Thank You.
Fla posted here
http://www.kiesertech.com/fla.html