Did you check if Windows Messenger is running. I am not sure, but I think if you click Yes on that dialog, you'll not be able to get those features, but StuffPlug will still work, not why those exact ones arent working, tho.
Windows Messenger is automatically loaded with Windows startup, i had MSN Messenger autostart deactivated to increase the speed of the start, now i changed back to auto and its worse... now colornickv2 also shows an error messege 'Color nick couldn't be loaded'.... WTF with this S***! Anyone with experimental suggestions? As I can see this isnt normal.
Okay! Let get to remove Windows Messenger, by following this information from Microsoft: http://support.microsoft.com/?kbid=302089 -- reboot, and tell us the results.