ActionScript 3.0 :: Multiple SWF Instances Interacting With Each Other?

On a webpage there would be multiple swfs. There could be one, there could be 15. It depends on the client.Each instance is the same swf but with different parameters. The swf is a simple toggle button, play/pause.When the page initially loads up, nothing happens.All the swf's default to the pause icon.An ID is passed from the html using flashvars i.e., FlashVars="Playerid=1" in the code, for each instance.When a user clicks on one swf (here is the problem), all the instances need to be listening and if they are not the clicked swf they need to change from play to pause if they were the previously playing swf or if the were in the 'pause' state to do nothing.

I was looking at using localConnection but it seems that a single swf can only listen to multiple swfs but multiple swfs cannot listen to one swf.I need them all to be continually listening for a user interaction (addEventListener.CLICK) and then all acting accordingly.I tried an enter.frame event for every instance to check if they were no longer the chosen track and update accordingly but it didn't work out.I have been playing with sharedObjects, storing the currentID (after being clicked), the previously played swf and whether the status is playing or paused.None of my efforts worked properly.Having re-written the above question many times, It is still a little unclear. I'll try again.

There will be say ten tracks from an album. Next to each track name will be a simple flash button the user can press to hear a 30 second sample. On clicking the icon, if no track is currently playing the icon will change from pause to play and the track will then play. If there IS a track already playing (say track 3) then on clicking say track 1 will stop track 3, change it's icon and then start track 1 and change it's icon from pause to play.The problem is that each swf on the page is exactly the same apart from an ID from flashvars and trackname which will be from an XML file or passed as a parameter when instantiated such as flashvars.