If you reformatted the Hard disk and reinstalled Windows then you should have the default ntoskrnl.exe already. This is clearly not the case. Are you sure you formatted the Windows drive and didn't reinstall a bootscreen modifying app? Logon Loader only changes the logon screen not the bootscreen. It has nothing to do with ntoskrnl.exe. Only concrned with logonui and bootxp unless there are others out there that I'm not aware of.

Did you try the link I gave?