I managed to replace my Messenger emoticons in StuffPlug-NG, and by upgrading to Windows Live Messenger, they just stayed.
What you
could do:
- Downgrade to MSN Messenger 7.5 with Messenger Plus! 3 and StuffPlug-NG.
- Enable the feature in SP-NG.
- Set the shortcut of your emoticons to one of Messenger's shortcuts.
- Upgrade again.
Of course, this is a very nasty work-around but I think it can work.
* You don't have to uninstall Messenger Plus! Live since it can work next to Messenger Plus! 3.