Help! d/drop lands in top left corner of target?

Hey everyone this I think is a quick fix but I’m not sure how to do it.
I created a quick game for my students and the drag and drop coding i think is messed up somehow. Ok so I drag the movieclip to its target and it drops but it stays in the top left corner of the target. I don’t know if I’m describing this clear enough so I uploaded the site to show you all and get help.
http://montgomeryschoolsmd.org/schools/woodlines/fractions/fractionsnumberline.html

For example the coding under the first target is below. Anyone know why it’s doing this? the last game i made which I literally copied from is fine. Help!!!
Lindsey
lwhyte1980@hotmail.com

zerohalfs_mc.onPress = function(){
this.startDrag();
};
zerohalfs_mc.onRelease = zerohalfs_mc.onReleaseOutside = function(){
this.stopDrag();
if ( eval(this._droptarget) == firsttarget_mc ) {
this._x = 12;
this._y = 137;
status_mc.gotoAndPlay(“correct”);
} else {
this._x = 224;
this._y = 255;
statusWrong_mc.gotoAndPlay (“wrong”);
}
};