There are a couple of steps that you need to do to set up an Ultra Course: converting from original, and making it available to students.

Converting from Original

To convert your course from Original to Ultra, click the Ultra button.

Click the "Try the Ultra Course View" button.

You'll be returned to the course menu and the conversion process will start.  You'll receive an e-mail once it's done.

Click on the course, and you'll see a preview.  Click on the "Use the Ultra Course" button.  Your course will be permanently converted to Ultra.

Making the Course Available

Similar to Original courses, Ultra courses are not available to students when they're first created.  To make them visible to students, click the link under "Course is Private."

In the box that pops up, click Open to Students.

If you need to close the course again, click the link again.  In the box that pops up, choose Make Course Private. Do not click Complete Course; your course will remain available to students, but they will no longer be able to submit work.