All courses that you have access to can be launched via the "My Courses" link from the left menu. You can subscribe to courses in this area, if they are available to you, simply by clicking on the course name. Once you are subscribed, the link will change from a subscription link, to a course launching link. This is the link you will use to launch the course.
Please note that your browser will be tested prior to the course launching in order to ensure that it is compliant, thereby maximizing your experience.