By default Centrenet excludes student photos from the Advisee Roster page. There is a setting to automatically include the picture in the roster's settings.
Click this link to go to the Advisee Roster page
In the right hand corner click the Set Options button. This will bring you to a page that allows you to set some of the default options of the page. These settings will be saved from one session to the next, so updating this once and you will be good to go during your Tenure at Centre.
Ensure that the Display student photos in search results (unchecking this box hides student photos) box is checked, you can also specify the number of students to display if desired, and click save.
Your page should refresh and student images should now be displayed.