Sliding menu tutorial not working with MCs? HELP fla inside

OK attached is my stripped fla, I’m trying to get the slider to work but I can seem to do it? I had it working when I used buttons instead of MCs but buttons don’t provide the animation I want for the “buttons” the slider is seperate as far as animations go I have gone over the slider tute again twice trying to figure out whats wrong can someone PLEASE help me out here