Migrating rollover menu as2 -> as3 help

Hi,
I have a .FLA that is working perfectly in AS2 that needs to be migrated to AS3. I am an AS3 beginner and cannot figure out for the life of me how to translate my code where i’m trying to execute a command in nested movie clip (i.e. something like parent.MyMovie.gotoAndPlay(2) or parent.MyMovie.currentframe = 2 ) - it keeps returning a ‘possibly undefined instance / function’ error and because it cycles through all the frames I can’t even tell if ANY of my code is working or not. Can anyone help?

Here are the two files:

http://mitchv.com/junk/realworldmap-edits-AS2.fla (working)
http://mitchv.com/junk/realworldmap-edits-AS3.fla (nonworking)

Here is the code from the _southamerica movieclip that contains the rollover:

frame 1 (menu has not yet dropped down - ‘clearbox’ is the clip that should be moused over and ‘mousegetoutsa’ is the clip that senses that the mouse has left the area)
mousegetoutsa.addEventListener(MouseEvent.MOUSE_OVER, mouse_get_out);
function mouse_get_out(event_object:MouseEvent) {
gotoAndStop(1);
}
clearbox.addEventListener(MouseEvent.MOUSE_OVER, mouse_over);
function mouse_over(event_object:MouseEvent) {
gotoAndStop(2);
}
stop();

frame 2 (_southamerica movie clip inside the root which also contains a movie clip called Brazil and a frame named Brazil)
goto_Brazil.addEventListener(MouseEvent.CLICK, brazil_click);
goto_Brazil.addEventListener(MouseEvent.MOUSE_OVER, brazil_mouseover);
goto_Brazil.addEventListener(MouseEvent.MOUSE_OUT, brazil_mouseout);
function brazil_click(event_object:MouseEvent) {
parent.gotoAndPlay(“Brazil”);
}
function brazil_mouseover(event_object:MouseEvent) {
MovieClip(this.parent).Brazil.gotoAndPlay(2);
}
function brazil_mouseout(event_object:MouseEvent) {
MovieClip(this.parent).Brazil.gotoAndStop(1);
}
stop();

It doesn’t need to be exactly like in the first file, if there is a better solution where the dropdown menus and animations still work then that’s just fine.

I’ve stripped the code in all the sections except the ‘South America’ movieclip. Help please? This needs to be fixed today ideally and I’m banging my head against the table.