user accounts

I messed up i think. i have windows media center edition, and wheni logon i can usually click my admin user account, type the password and get in. yesterday i made a new account and was only able to create an admin account. i did that, but now the admin account i usually use isnt even there. anyone know what i did or how to fix it??

i looked in documents and settings under all users and mine is still there...but it doesnt show up on the users list or on my logon screen

 

nevermind. just had to disable the welcome screen.