Restarting your channel should take care of the out of date chat user list:
-Go to your Account Center
-Click the 'More' button at the far right of your channel
-From the options that roll out below your channel, click 'Restart'
As for the name changing color in the user list, this is only reflected for users, not the channel owner or mods.
Last edited by ernielive; 24th January 2013 at 10:54.