Interactive, rotating globe - button problems

Question

I made an interactive rotating globe that shows all the continents (using CS3 and AS3). The globe rotates automatically. When the user mouses over the globe is stops rotating and they can use left/right arrows to rotate it manually to get to a continent. When the mouse rolls over a continent (Australia for instance) it changes color and should be clickable and go to a website but it's not working. It doesn't return any errors.
The basic structure of it is this:
One big continent map (basically a flat world map) with a motion tween applied to it so it looks like it's moving across the planet in the background. That's in "globe_mc" on the main timeline. Then I did the same thing in a different movie clip with the buttons (moving across the planet in sync with their respective continent), that's in "buttons_mc" on the main timeline.
The button worked until I applied the mouse controls to "buttons_mc" in the main timeline AS (to make them stop moving with the continents with the mouse is over the planet). After I did that it stopped working (I'm just working with "test_btn" right now until it works).
The code for the button, inside "buttons_mc" is the following:
//test btn
function testBtn(event:MouseEvent):void
          navigateToURL(new URLRequest("http://www.pmirope.com"));
test_btn.addEventListener(MouseEvent.CLICK, testBtn;
//end test btn
This is the code I have on the main timeline to control the rotation based on the mouse position:
addEventListener(Event.ENTER_FRAME, scroll_function);
function scroll_function(event:Event):void
//Both Nav Arrow's Y Position
      if(root.mouseY>470 && root.mouseY<530)
//Right Arrow's X Position
      if (root.mouseX>50 && root.mouseX<75)
                 globe_mc.land_mc.gotoAndStop(globe_mc.land_mc.currentFrame-1);
                 buttons_mc.gotoAndStop(buttons_mc.currentFrame-1);
      else
                 globe_mc.land_mc.play();
                 buttons_mc.play();
//Left Arrow's X Position
      if (root.mouseX>925 && root.mouseX<950)
                 globe_mc.land_mc.gotoAndStop(globe_mc.land_mc.currentFrame+1);
                 buttons_mc.gotoAndStop(buttons_mc.currentFrame+1);
      else
                 globe_mc.land_mc.play();
                 buttons_mc.play();
//Globe's Position
      if(root.mouseY<950 && root.mouseY>50)
      if(root.mouseX<950 && root.mouseX>50)
                 globe_mc.land_mc.stop();
                 buttons_mc.stop();
      else
                 globe_mc.land_mc.play();
                 buttons_mc.play();
I'm guessing that the button's code is being canceled out by the "position" code but I don't know how to fix it.
Please help!!!

Answer 1

First, to answer your question, they do change color and it's done with the up, over and down states inside the button. So when you rollover the button it changes color and the mouse changes to the hand to show it's clickable but when it's clicked nothing happens.
I did figure out a way to do it, but I'm not sure why it works. As I said before, I had the buttons_mc and the globe_mc on the main timeline. I put the buttons_mc inside two other MovieClips and then put the actual buttons on the stage - like this:
Main Timeline
     globe_mc
     buttonsMain_mc
          buttonsInside_mc
               buttons_mc
                    US_btn
                    Canada_btn
                    Australia_btn
                   and so on....
I tried putting buttons_mc inside only 1 MovieClip (buttonsMain_mc) but it still didn't work. I had to add buttonsInside_mc for it to work. Why is that?
Thanks for the help!