iTunes deletion?

I'm trying to put together a rule that looks at a particular folder in iTunes to see whether a file exists and has been added more than a day ago and, if so, delete it. I don't have a problem with the basic rule, but I'm wondering whether anyone has a good applescript to do the deletion (rather than simply deleting the file, which won't let iTunes know to remove the file from its list of tracks).
(This is designed to remove voicemails after I listen to them.)
Thanks,
Tony
(This is designed to remove voicemails after I listen to them.)
Thanks,
Tony