Before you take the steps i described above make sure you open the contactlist from the tray.
Even with the setting to hide the contact list in taskbar the window name should appear in the task manager
edit: hmm i see you have resolved your issue using counter measures , its good to improvise sometimes
This post was edited on 03-10-2008 at 05:38 PM by TazDevil.
Window Manager is discontinued, for WLM try the new, Enhancer for contact list docking, auto-hide, hide taskbar button, remove button flashing and remember keyboard layout in conversation windows
Messenger Plus! Live Enhancer
/ 
, its good to improvise sometimes 
