Looking for a free PHP/MySQL Chat Script with features

Ive tried a couple of free chat scripts but haven’t found the one with all these features;

  • Requires user sign up and login
  • Displays list of users online by the side
  • Has private chat- a user can click on the name of another user online
    to chat privately,opens a new box.

If you know of any free one, thanks.

You could try this older free chat:
Datetopia.com ChatZone