Thread moved.
Look around in User Accounts in the Control Panel. Or it may even be in TweakUI. I'm not really sure considering I am the only person who uses this computer and it logs onto my account as the default.
EDIT: I found it in TweakUI, it is under Logon, Autologon. Check "log on automatically at system startup." Here's the link to download TweakUI if you don't have it:
http://download.microsoft.com/downlo...ertoySetup.exe