FMX] Need help please! /Unload or Close External SWF(s)

The code for MAIN SWF (*on each navigation button or icon links)…

on (release) {
if (_root.currMovie == undefined) {
_root.currMovie = “about”;
container.loadMovie(“about.swf”);
} else if (_root.currMovie != “about”) {
if (container._currentframe >= container.midframe) {
_root.currMovie = “about”;
container.play();
}
}
}

Code on THE External SWF timeline…

firstframe: (whatever midframe # is…)
midframe: (actual midframe #…)
endframe: (whatever endframe # is…)

This code works fine. All swf’s load on top of the main swf,
as I expect them to. However, figuring out how to close any
of my swf’s at a given time to view just the main swf [homepage]
(which display swf-button links) on center stage
has become more than a long journey through many posts/threads, on many forums.
It’s been suggest to try Flash/Help-Action, referring to the…
“unloadMovie” or “UnloadMovieNum” methods which didn’t seem to be the answer either.
I’m asking for someone’s help in figuring out what is the code needed to Close an External SWF whereby it will not affect the “container”, which seems to be affected with the following code I found on a forum…
…where loadMovie will load the swf:

_root.container.loadMovie(_root.currMovie+".swf")
<>
It’s been suggested that unloadMovie “should” close the swf on button press.
_root.container.unloadMovie(_root.currMovie+".swf")

The result of this action will close the swf, but it also unloads
the “containter” which ushers the swf in place. None of my button
links which contain Swf’s will respond to a button click action
when that line of code is applied. I’ve been traveling for
an answer for more than a month now with no success.
And have read (many) posts expressing the same situation.
I found this tutorial on Kirupa.com, but haven’t been able to locate the remedy
for “unloading” or “closing” an swf (an option). Is there such an actionscript remedy (tut)?
My .fla is too large to upload for review.

I’m in the area of an intermediate flasher (my opinion), with limited actionscripting
abilities, obviously, still a looong way to go. Any help would be appreciated.

Thanx.