How do I change the windows XP welcome screen?

My dad started messing with my computer and now the welcome screen looks like this-

http://screenshots.leeindy.com/LinkSys/W…



and i want it to change back to this-

http://www.petri.co.il/images/xp_welcome…



how do i change it?How do I change the windows XP welcome screen?
Ok. Go to the control panel in the start menu. Then go to user accounts. Then click change the way I log in. Then just read the options and select the one you need.