Samba Configured on Ubuntu Server /w full comments of config file.

I need somebody to log in to my server and configure my Ubuntu Server to 1.) Allow XP and Windows 7 Machines to authenticate to it. 2.) Allow XP and Windows 7 Machines to attach to it as if it were a Domain controller 3.) set permissions and settings for 3 users so they can access shares they have permissions to and only the shares they have permissions to. 4.) Connect to printers setup on the Server and automatically download the right drivers. All settings must be fully commented and explained in the config file.