Stardock Logon (Win XP)

I am not a Windows XP user, but I found this program on the web that allows XP users to change their boot/logon screens. You must first change the jpg screens on this site to 640x480 and then reduce the color depth to 16-color (4 bit) in your photo editor. You can then use Stardock Logon to install the screens. It also includes an editor that allows you to edit the screens. 1.90 MB

Download LogonStudio

Another program to change XP screens, BootXP is shareware and costs $7.95.