Php email tutorial

I’m having a few problems with the php tutorial. I’ve got all the actions in my main timeline and calling them using instances. I have a mc called formset with an instance of formset in which is another mc called form with an instance of form which on the mc has the following code -

onClipEvent(data){
// show welcome screen
_root.formset.nextFrame();
}

I have a submit and back buttons with the following syntax -

formset.submit.submitbutton.onRelease = function(){
this.formset.form.loadVariables(“email.php”, “POST”);
}
formset.back.backbutton.onRelease = function(){
this.formset.prevFrame();
}

I’ve a feeling I’m calling the timelines wrong with the root handlers etc. Only being doing flash for about 6 months and I can’t really figure out exactly what wrong. Can anyone shine a little light on this problem please.