Software :: Making ITunes Work With Speakable Items

I recently discovered the speech control option in OS X. I downloaded an applescript from Apple's site that's supposed to play a random song when the script is run. I put it in my speakable items folder, and it's recognized, but it won't actually run. Does anyone know how I can get iTunes to play a random song when I tell it to? Also, to switch and stop songs? I'd love to be able to sit in bed and say "play music", "next song", "rewind song", etc., but so far, all I can control by voice is opening and hiding iTunes and the scripts from apple's site just plain won't run.