Windows 7: Problem modifying ExplorerFrame.dll

This is a problem which will soon drive me insane - I'm having trouble replacing the 291.bmp in ExplorerFrame.dll (this is the image of magnifying glass and 'x' in the Explorer search box). Even though the new image I made is inside the .dll, that particular area for some reason remains unchanged - I still get the default images after restarting Explorer or rebooting, all the other new images I put in the .dll show up just fine in the Explorer windows. Am I missing something here?

I'm using Restorator 2007.



Edit: I noticed you need to replace 34560.bmp and 34569.bmp