Adding and dropping courses is also accomplished either through BanWeb or at Student Records and Registration. Discuss with them or your advisor about when you can sign up for courses.
For Fall, early registration occurs around early April. For Spring, early registration is in November. For both semesters, registration usually resumes about two weeks before the semester begins. (campus calendar)
Use the student planning page for registering classes. When adding a class via BanWeb, note the CRN number can be found on the schedule of classes link.
You can determine your housing situation before you get here. Being a non-traditional student you can choose to be off-campus or on-campus.