Problem with JavaScripts in Acrobat X Pro

Hello, we had some Javascripts that worked great in version 8, we set them up for 'will print' and 'did print'.
 
I cannot, for the life of me, find how to set these JavaScripts up to execute on 'will print' and 'did print' in Acrobat X; the menus are quite different, if someone could provide a tip or two on how to get to the "When this happens..." menu, that would be very helpful. I downloaded the Acrobat manual, but I couldn't find this.