To purchase a course log into the System.
If you have no log in click here to create one.
After logging in Click on "The Courses" at the top of the page.
Select the course that you would like to enroll in by clicking on the course title.
Once the desired course is selected confirm that this is the course you would like to purchase.
Once confirmed click on the 
Fill in the necessary information: 
You will know after clicking the 
button if you were successful or unsuccessful.