How to change Windows XP Boot screen ?

I want to change the default windows logon screen (black screen with Microsoft Windows XP professional written on it) with my pic . How to do it manually without using any third party software ?|||Download BOOT XP|||Load your picture somewhere on hard drive,click CONTROL PANEL - DISPLAY.Under Theme,you see Window XP,click on the right to see drop down menu.Click BROWSE (on the bottom of drop down menu) then browse to your picture,click picture,click OK then APPLY