Shoutbox

Hey guys
I was wondering if anyone could tell me of any ways to perform "advanced" events.  I know a few people have used scripts to do things such as enable the "Show what I'm listening to", I'm looking to do the reverse, and perform a function when I enable it.
I need this because I have a script that changes my media, but because of the way it gains the media info, it shows empty when enabled.
I also want to perform a function when I recieve a nudge.  Can anyone tell me a way to do this? (I promise it's not for an auto-nudge-back).
Thanks all