http://********skinned.org/
They have a load of Logon screens and such, mine looks like KDE, they will tell you how. You can also use Resource Hacker to change the images in ntoskrnl.exe this is where the booting splash screen is...it's only an image, so you can change it, how ever....XP won't let you change it while it's running so you have to change it through DOS, I have one if u want it....has a bit Biohazard symbol on it.....to restore the old one...simply delete it and XP will write another one from a compressed file somewhere....

- Noia