Damn xp looking like NT

How is it that i changed my regular windows xp home to a NT version...

#1 - Every time i turn on the computer i get a log in and password , looks just like windows 2000 log in.

#2 - when ever i hit control alt delete , it brings me to a 6 option box instead of the regular task manager ..

Is there a way to reverse this ? please leave any info possible

 

Right click an empty space on your desk top, click properties, appearance and change to Xp style

 

Actually go to controlpanel/ user accounts/ change the way users log on, and make sure "Use Welcome screen" is checked if not check it

 

Sorry about that, I should have read the question more carefully.