Custom Logon Screen For Xp.

hi all

i learned to change my xp logon screen well. but i was wondering if there was a way where i could actually move the position of the buttons and all.(i know you can change the position of the (place where you write the password) but i want to move the enter(the button which you press after entering the password)button. to some where else.?
and is it possible to change the size of the display picture.?

A step-by-step tutourial will do.(if there is one)

CHEERS