I didn't understand the last two posts. What Jason Roberts described only replaces the Windows XP welcome screen, with the Win2k login boxes. (Apart from the changes relied to Fast User Switching). Anyway if there is no password for an account these login boxes accept blank passwords and if there is a password and you forget it, you are screwed no matter what login style you use.
To answer the original question I think what you are after is to avoid any kind of login screen. You can achieve this by using TweakUi - Logon - Autologon.
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS