Unloading Movie

WHat am I doing wrong.

I have a main movie lets call it main “A”, I am loading in an “test.swf” file in to main movie “A”, I want once the user finish viewing it they have the option to unload it - and be where they were.

This is what I did.

I append a button to test.swf - to unload itself once clicked. I used
on (release) {
unloadMovie (“fullstory.swf”);
}

This does nothing at all.

So I tried this instead:
on (release) {
unloadMovie (0);
}

Well it works, but it unload everything including Main movie “A”

I don’t know what I am doing wrong. I referrenced what I want to unload and it does not work…

Help … anybody