It is possible but gets a little complicated. You need to pass a parameter into the flash movie for the part you want to go to. This is done in the html page that calls the flash movie
loadpage is the name of the variable that you want to pass in and anyone is its value. You also need to include it in the embed tag eg
EMBED src="/home/myFlash.swf?loadpage=anyone" etc
Then in your flash movie on the first frame you can add
if (loadpage=="anyone"){
gotoAndplay("anyone")
}
To change what page you want to go to the call in to the swf needs to pass a different variable. Hopefully you can do this by changing the varibale dynamically in the html page as it is served. Otherwise youll need to call different html pages with different values ifor loadpage in.