This topic answers your questions on managing messenger list, adding and deleting contacts.
What is a Messenger List?
How Can I View my Messenger List?
How Do I Sort my Buddies?
How Do I Add Buddy?
How Do I Delete a Buddy?
How Do I Rename a Buddy?
How Do I Create a Buddy Group?
How Do I Rename a Buddy Group?
How Do I Delete a Buddy Group?
How Do I Move a Buddy from One Group to Another?