AKGN

Hey, A few days ago I downloaded a logonui.exe file for xp that has windows 7 logo and background in it .I editied it using Photoshop and ResourceHacker. I made a new background and my own os logo and replace it with an existing one and then added it to the logonui.exe file. then i replace it with xp's logonui.... When I logged out I got an error message wth: 'value creation failed at line 120'. Does anyone know why?? if yes please provide me with a proper steps to edit logonui.exe