Thanks for Downloading iTunes Library Manager
iTunes Library Manager will begin downloading in just a few moments. If it does not, then click here.
Now what happens?
A .zip file will be downloaded to your browser's "Downloads" folder. If your browser does not automatically open the .zip file, double-click the .zip file's icon in the Finder. Do not use Stuffit to uncompress the .zip file.
The .zip file contains the iTunes Library Manager application. Install it in your Applications folder.