I installed this and like it, Most of the install procedure is in French, but is obvious to anyone who's installed programs before. I was a little confused because there are two installers, and because the program is hidden deep inside the Mac so I couldn't see what I had done.

1.) Run the main installer from the disk image. Click the usual "I accept" boxes. You can choose "English" from the dropdown menu, but most of the proceedure is still in French anyway.
2.) Run the second installer on the left side of the disk image. (I first thought this was the uninstaller, but managed to figure out I was supposed to click it to finish the installation. There's enough English on the screen to make that apparent if you actually read it instead of looking at the big icons.)
3.) In the dialog box that appears, type in a User Name, which is also your Username. I thought I was registering the program, so I used my FirstName LastName with a space between them. Fortunately this worked (later) when I had to log into their website console to set up the protection.
4.) The second box is choose a "mot de passe" which is obviously your password. The third box is your email address.
5.) You will immediately recieve an email with the link to their website console, from which you administer Protection. The email and website are in English.