The Testimonials page is very similar to he work page in that the content is based on posts assigned to subcategories of one main category – in this case the testimonials category (or whatever you created and assigned in the options panel). Simply create the Testmonials page and assign the page template. Then create the testimonials category, the subcategories you need (ie clients, collegues, friends, moms, whatever), then create posts under them (but not under the testimonials category itself, just the subs). Below is the information that should be filled out for each testimonials post:
Then simply upload one image you’d like to show (just upload and attach, do not ‘insert’), and that’s it!