ooh err.
Ill look right into these things
EDIT1:
you are right, if you have 233 and 2335 double clicking 2335 sends 233. I shall look into this right away.
And yes it does screw up if you then delete 233 and try tto double click 2335.
However...
I went
Plus! -> Preferences -> Plugins -> Audiator3 -> Configure
and added the sounds there.
Then i went to a conversation window that was already open, and did /xAUconfig. and the sounds were there for me.
If this happens to you again there is a command you can use to reload the sounds list, i cant remember if it is in the menu or not, but /xAUReload will make sure the list in the config menu is accurate.