Action Script Buttons Heirarchy Help

Question

This is my first post and im hoping someone out there will be able to help I am a developer in JS and ASP but never learnt actionscript and am completely stuck.
Basically I am using the sliding code from a tutorial i found online, what i want to do is have buttons inside the Content 1, content 2 etc which are basically the pages which are then put into a holder then added to the main scene called CONTENT.SWF, I also have an index.swf which uses a swf loader to bring the CONTENT.swf in, confused yet i am......
The buttons work if i add them to the main scene in Content.swf but not in each of the content1, content2 etc. So i am sure its to do with hierarchy of buttons layers going down or something.
var currentPosition:Number = contentHold.content1._x;
var startFlag:Boolean = false;
menuSlide = function (input:MovieClip) {
                if (startFlag == false) {
                                startFlag = true;
                                var finalDestination:Number = input._x;
                                var distanceMoved:Number = 0;
                                var distanceToMove:Number = Math.abs(finalDestination-currentPosition);
                                var finalSpeed:Number = .3;
                                var currentSpeed:Number = 0;
                                var dir:Number = 1;
                                if (currentPosition<=finalDestination) {
                                                dir = -1;
                                } else if (currentPosition>finalDestination) {
                                                dir = 1;
                                this.onEnterFrame = function() {
                                                currentSpeed = Math.round((distanceToMove-distanceMoved+1)*finalSpeed);
                                                distanceMoved += currentSpeed;
                                                contentHold._x += dir*currentSpeed;
                                                if (Math.abs(distanceMoved-distanceToMove)<=1) {
                                                                contentHold._x = maskMovie._x-currentPosition+dir*distanceToMove;
                                                                currentPosition = input._x;
                                                                startFlag = false;
                                                                delete this.onEnterFrame;
nav.b1.onRelease = function() {
                menuSlide(contentHold.content1);
nav.b2.onRelease = function() {
                menuSlide(contentHold.content2);
nav.b3.onRelease = function() {
                menuSlide(contentHold.content3);
nav.b4.onRelease = function() {
                menuSlide(contentHold.content4);
nav.b5.onRelease = function() {
                menuSlide(contentHold.content5);
nav.b6.onRelease = function() {
                menuSlide(contentHold.content3);

Answer 1

Thanks, but that didnt work for me I did manage to get one button working from within the content1 movieclip  by using the script below.
on(release){
this._parent._parent._parent.container.loadMovie("video.swf");
Just trying to get the code i posted in my first message to work with a button in content 1. I have tried amending the code on the root page from:
nav.b1.onRelease = function() {
    menuSlide(contentHold.content2);
TO
this._parent._parent._parent.nav.b1.onRelease = function() {
    menuSlide(contentHold.content2);
STILL NO LUCK the button instance is b1 , I have even tried adding the script directly to a button.....its driving me crazy...thanks for all your help so far..
on(release){
this._parent._parent._parent.contentHold.content2.b1.menuSlide(this._parent);