A: Log in to mLearn, you should be in the entry page, http://mlearn.smp.org/learn, if you have more than one course. There should be a list of course sections, select the one you want and it should open where you left off. Otherwise, navigate through your modules, lessons and activities.
If you are enrolled in only one course when you login, mLearn will automatically open to where you left off in the course.
B: If you are already in a course you can check your other course sections by selecting the top left-corner drop down and all your course sections should be listed there.