Shoutbox

To assign a sound to a contact event using Messenger Plus. First open up your Messenger Plus preferences panel and click on the "Notifications" tab. Then simply select the contacts you wish to assign a sound to and then click the browse button next to where it says "sign-in sound" near the bottom of the window, choose a sound you wish to play then click ok. Click apply then you're done. As for using the in Plus sounds for when someone signs in, im not so sure if it can be done. Anyway, i hope this helps.

EDIT: I was beaten