Unloading a loaded external SWF with a close button on the external SWF to unload

Question

I have found some discussion on this topic but I am still having trouble getting it to work and was hoping to get some help here.
Here I have a file: http://www.dril-quip.com/test/main.swf
I have: main.swf (a menu) and I have module.swf (content)
If you navigate to Subsea Wellhead Systems/SS-15 BigBore II and click on that I have it load an external swf which covers most of the parent.
So far so good. My problem is unloading the loaded 'Child' swf with the button provided on the loaded 'Child' swf.
below is the code I used to load the file but I cant, for the life of me, find a way to unload it.
var bigboreLoader:Loader = new Loader();
btnbb2.addEventListener(MouseEvent.MOUSE_UP, bigborecontent);
function bigborecontent(event:MouseEvent):void{
var bigboreRequest:URLRequest = new URLRequest("moduletemplate.swf");
bigboreLoader.load(bigboreRequest);
stage.addChild(bigboreLoader);
I am certain it requires the Child to communicate with the parent somehow but I am at a loss. If I could get a bit of advice or a link to something deal with this, it would be a big help. I just need to have my links load my modules and the remove them when the close buttong is hit on the loaded swf. I promise I have done searches and I admit I have found asnwers but still they are not working. I found the code below:
Main FLA:
function removeF() {
removeChild(bigboreLoader);
var bigboreLoader:Loader = new Loader();
btnbb2.addEventListener(MouseEvent.MOUSE_UP, bigborecontent);
function bigborecontent(event:MouseEvent):void{
var bigboreRequest:URLRequest = new URLRequest("moduletemplate.swf");
bigboreLoader.load(bigboreRequest);
stage.addChild(bigboreLoader);
EXTERNAL FLA:
btnClose2.addEventListener(MouseEvent.CLICK, bigborecontent);
function bigborecontent(myevent:MouseEvent):void {
MovieClip(parent.parent).removeF();
I think I have a misunderstanding of the code. Thanks for any help you might be able to provide.

Answer 1

This was the original code I got:
Main FLA: (on AS layer inside DropDownButton Movie Object)
function removeF() {
removeChild(myLoader);
var myLoader:Loader=new Loader ();
page1_mc.addEventListener(MouseEvent.CLICK, page1content);
function page1content(myevent:MouseEvent):void {
var myURL:URLRequest=new URLRequest("page1.swf");
myLoader.load(myURL);
addChild(myLoader);
EXTERNAL FLA: (on main time line of this file)
close_mc.addEventListener(MouseEvent.CLICK, closeMC);
function closeMC(myevent:MouseEvent):void {
MovieClip(parent.parent).removeF();
Main.FLA
myLoader=bigboreLoader (my new loader)
page1_mc=btnbb2 (the button who event will call external swf)
page1content = bigborecontent (name given to SWF being loaded???)
myURL=bigboreRequest (my new URLrequest for bigbore)
page1.swf=moduletemplate.swf (actual address of what I am loading)
External.FLA
close_mc=button that will close external swf
closeMC=movie clip to close?