Magento Testimonials Slider extension
https://www.magentocommerce.com/magento-connect/testimonials-slider-2.html
log out and login again, or you will get a 404 using the first time
Content
make a cms page with URL Key ="testimonial" and put this line of code in content
{{block type="testimonials/index" name="testimonials_index" template="testimonials/testimonials.phtml"}}
Sidebar
{{block type="testimonials/index" name="testimonials_index" template="testimonials/sidebar.phtml"}}