Thank you a lot. Now it’s 2:35AM in Italy, so I will let you know in the morning when I get up.
Italy, huh? I think that might be the issue, and something I didn't think about when I put the script together. I have a feeling that the ATM files modify resources within the English language .lproj folder. If you installed it on an Italian language install of Tiger, it'll modify the MacOSX.tiff image, but not the rest, as the script doesn't touch the Italian .lproj folder. It would be a simple matter of renaming a couple of folders, but I don't know what effect it would have on the system other than everything in ATM being in English (or not. Still not sure). If you can live with that possible effect, the fix will be easy.
I'm not home yet, so I can't check the script. I'll edit this later tonight with the procedure once I see if the language .lproj folder gets modified.