You really don't need software to change your logon screen.
Just toss the logon screen .exe file into C:\WINDOWS\system32. You don't even need to overwrite the old logonui.exe. Just rename the new logon screen to, lets say, logonui2.exe (or something more descriptive).
Then open up Regedit (Start>Run>regedit), and navigate to [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
Double click UIHost and change it to the name of the new login screen, i.e., logonui2.exe
If something is wrong with the new logon screen file, it just switches to the classic (Win2k style) logon screen by default, so that shouldn't be a problem.
Also, if you store the file in any place other than system32, you would need to enter the full path to the file, making sure you use double backslashes everywhere. eg: "C:\\Misc\\LogonScreen\\logonui.exe"
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS