Madhosh

Memebers, I am very new to this and learning. I want to upgrade my friend shop fro TB 1.5 to TB 1.6. But i have certain problems : 1. My friend had brought paid 3rd Party API for the shop review. This shop review doesn't work with TB 1.6. Questions : a. If i want to migrate the whole data how should i do it ? b. TB has product review which is for each product. But i wanted it only as shop review. How can change or customize it ? Can you please help me here.