I am using addon version 10.2.7 for Cataclysm Classic. The AddOn appears to be non functional. When going to pet journal, the UI changes are not present. When going into AddOn settings, the PetTracker AddOn does not appear despite being installed through CurseForge.

Battle Pets was added in Mists of Pandaria, so I don't think it would be possible to use this addon in Cata classic.