user name doesn’t appear on posts

I’m the principal author of a blog and I just registered another user (who has level 4 privileges). His profile includes a pseudonym and a fake e-mail address, but now that his posting privileges have been enabled, there is no identification attached to posts. Whether it’s he or I who posts something, no name is underneath the post title. Anyone know what I should change to make my name appear under my posts and his name appear under his?

the site is: https://www.clutchpearls.com