Hey, it's fine, you don't have to be active to ask for help
This is a limitation to Plus! I'm afraid. Windows Live Messenger cuts the contact's nickname short in the popups (or "toasts" as they're called). So, if it cuts the formatting, you won't see the formatted name unfortunately, in WLM popups (signing in, new message).
In Plus! toasts (such as Event Notifications, like a contact signing out who your chatting to), should appear fine.