Outlook 2007 script to set up new user profile

We have two computers that are shared by 20+ users. Setting up an Outlook 2007 account profile is a hassle when a new person is hired. All of the people on the computer shares the same Outlook email settings (account login name, password, POP3/SMTP server names) are identical for everyone and all use a common PST file. We would like a script that can run for each employee that does all of the Outlook email account setup automatically. When a new person is hired we run the script and they can open Outlook and not have to go through the email account setup or point to the "shared" PST. The email account info, SMTP, etc should be stored in an INI file. If this information ever needs to change (say we need to start using a different SMTP server) we want to run the utility again for each XP user and have the old Outlook profile info overwritten with the updated values.