loadMovie then gotoAndStop help

programming flash
1

Hi guys, im trying to load an external swf into a movieclip and then within that movieclip goto a particular frame. here is what i am doing



this.menumv.bt1.onPress=function(){
       
      mainMC.loadMovie(curMC);

       mainMC.onEnterFrame = function(){
                this.thumbs.gotoAndStop(2);
       }

}

It seems not work. Can someone please advise.

Thanks