Admin Module and Testimonial Page Fro Zencart

I want 2 things as of now for our Zencart website. 1) An admin module where by we can control other internal users who have an admin login access to view the prices, we would not like certain users to see any prices. just update things. 2) A testimonal page, where anybody can post a feedback without logging in, the feedbacks should come to us to be approved. We would also prefer to install this ourselves, a zip file with instructions is what we need. After succesfull completion of this project, we will consider additional projects to the same person.