Your original code should give you a compile error. It will not work because when you are adding an event listener for your button which is inside the movie clip, you need to specify the entire hierarchy to Flash. In other words this would have worked:
Notice how I have added the about_mc which contains your button. If you don't include that, Flash is looking for that button on the stage, and cannot find it (because it's inside the about_mc).
Let me know if that helped.
TY so much Valerio, your explanation was clear and it worked just as you
explained. TX again.
BUT, here's what happened next. I am able to navigate back and forth between
home and about (labor violations button) over and over again when I first
play the swf.. Now, my Read More Details button works perfectly and
navigates to laborLaw1_fl (frame 101) perfectly. Next, I made a button at
101 to navigate BACK to the "about" and it works perfectly too. I used the
following code in AS layer at 101 frame:
//the following is to navigate back to "about" (Labor Page)
THIS worked perfectly also EXCEPT that I can no longer navigate back to the
home page from the about page (labor violations). I can navigate all day
long before I execute the the navigation to 101 and come back and THEN my
home button no longer works. Above is a link to seeing the problem in live
action video. Hope I have explained this appropriately for you to make a
determination about what I have done wrong. TY SO MUCH Gene
The only issue IS: when I navigate BACK to the "about" (labor page), I can
no longer navigate back to the home page.