Using swf's like html pages

I have been searching for this for awhile, but still can’t figure it out.

I have a webpage that consists of three swf’s. I want these swf’s to work like individual pages on an html site.
So I want each page to cover the one before it so that none of the buttons underneath are clickable.
Right now the swf’s are loading on top on each other but “invible” buttons appear on the top page where ever buttons were located on the previous swf’s.
The curser turns into a hand where there should not be a button.
The following is the code I am using for the contact button on the home page…

on (release) {
contents.loadMovie(“contact.swf”);
}

on (release) {unloadMovie(“home2.swf”);

}

What am I doing wrong?
Thanks for any help.
Christina