1. Communities > Special Events > Friends Asking Friends > Kintera Thon > [Event] > Website Info
  2. Click the Sponsor Information link
  3. Click Edit next to the Sponsor level (click Add New Sponsor Level to create a new level if needed)
  4. Set the Number Available to 0
  5. Check the box for Available for Sale Online
  6. Click Save
  7. Go back to the Website Info page for the event and click the Publish This Event Now button to apply the change
By making the Sponsorship Level available for sale you will list it in the Sponsorship Opportunities page.  By marking the number available as 0 you prevent anyone from purchasing the Sponsorship.  This is useful for showing Sponsor levels on the site.