Newbie, please help--swf files work fine separately, don't work when on same page

Question

Hello all,
I am new to flash, and piecing together different templates to try and  learn things.
I have run across a strange problem. When I load products2.swf by  itself, I can call the two "copy" files and everything works. When I  open 0342.swf (the index page), I can switch between the home and  products2 pages, but I can't view the "copy" pages.
I'm guessing there may be some sort of conflict with variable names,  but I have been messing with it for most of today.
I have uploaded all of the FLA files to here:
http://littlebuddymedia.com/flashhelp.zip
If you make an swf file out of each of the attached items, and open  the 0342 file, you will see what is supposed to be happening.
Any help anyone can offer is greatly appreciated.
Below is the code from each relevant button in case that is easier for  some of you.
Thank you in advance!
From the 0342 page (the index page)
My "Home" button
on (release) {
if (_root.currMovie == undefined) {
_root.currMovie = "home";
_root.container.loadMovie("home.swf");
} else if (_root.currMovie != "home") {
if (_root.container._currentframe >= container.midframe) {
_root.currMovie = "home";
_root.container.play();
My "Products" button
on (release) {
if (_root.currMovie == undefined) {
_root.currMovie = "products";
_root.container.loadMovie("products.swf");
} else if (_root.currMovie != "products") {
if (_root.container._currentframe >= container.midframe) {
_root.currMovie = "products";
_root.container.play();
FROM THE PRODUCTS2 page
My "copywebdev" button
on (release) {
if (_root.currMovie == undefined) {
_root.currMovie = "copywebdev";
_root.copycontainer.loadMovie("copywebdev.swf");
} else if (_root.currMovie != "copywebdev") {
if (_root.copycontainer._currentframe >= container.midframe) {
_root.currMovie = "copywebdev";
_root.copycontainer.play();
My "officetech" button
on (release) {
if (_root.currMovie == undefined) {
_root.currMovie = "copyworktech";
_root.copycontainer.loadMovie("copyworktech.swf");
} else if (_root.currMovie != "copyworktech") {
if (_root.copycontainer._currentframe >= copycontainer.midframe) {
_root.currMovie = "copyworktech";
_root.copycontainer.play();
}

Answer 1

Not in the example I linked to.
I added the code and uploaded an example of what it does.
When I put "this._lockroot=true" into the first frame of the products.swf file, this occurs:
http://littlebuddymedia.com/flashhelp/withlockroot/0342.html
i.e. you can click over to the products page, but you can not navigate back clicking the "Home" button does not bring up the home page, it refreshes the product page. You are also not able to switch between the two text boxes (copywebdev and officetech) on the products page (though one of them will load--whichever one you click first).
I guess this was "two steps forward and one step back"?
Thank you for continuing to take a look at this.