You will need to create a separate button for each event for each zone. So you would need to have button in each separate zone for play, pause, etc...
So each button would
1) Set the zone
2) Implement the function (play/pause/vol, etc)
But this still doesn't get me the information about what is CURRENTLY playing in the zone, correct?
I am looking for something like Zone>1>Artist...
Is there a plugin which pulls these variables from WinAmp?