If you have performed the steps mentioned in the documentation and it is not working:
  1. Setup > App Setup > Customize > Campaigns > Fields
  2. Under Custom Fields & Relationships find "Is TeamRaiser Campaign" and select to view.
  3. Select Set Field Level Security and choose visible for all necessary profiles.
  4. Save
Once completed and you go back to view a campaign the widgets should load.  This new field needs to be checked for the widgets to populate, but the checkbox should be checked if the event has been cross referenced to Luminate Online.  You can add the field to the page layout as well to confirm it is checked.