by kieran » Mon May 30, 2011 6:25 am
It can be easily done with a registry hack and placement of the correct files.
Create registry key: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background] "OEMBackground"=dword:00000001
Put image files in C:\Windows\System32\oobe\Info\Backgrounds that are the correct size: