Indeed there are a collection of things missing from the Plugin Manager however that hasn't stopped me from updating this module to Testimonial Manager 2.5.1 with all the corrections needed to prevent any errors with the current stock Plugin Manager!
I'll package it up later this week and submit


Fixed:
- Install - Stock Zen Cart Plugin Manager errors
- Uninstall - Missing defines errors causing page load and sidebox load errors
- Failed star rating display
- CSS updates - mobile friendly
- FontAwesome - unsupported version errors
- Missing heading title error
- Corrected various spacing issues and spelling errors


Now built into Twitch Base7 [Sapphire] - a demo link is available for anyone wanting to see it in action - just email me directly and I'll send the link!