Network: Members Profiles not themed as expected

Using the 'Network' theme on my buddypress site, the profile page of a member looks different on the online demo than on my site. Does any one know why this could happen? Is there anything special I need to do to get the profile page to look the way it does on the demo? To clarify, attached is an image of the expected profile page (like in the demo) along with an image of my profile page: