Blackboard does not update with your Banner enrolments until the day after Registry processes your registration and enrolments. You will not have access to Blackboard right away.
When you do have access to Blackboard, some (or all) of your modules may not be visible yet. Most modules are scheduled to be available from the start of term (for Semester 1, that is 26 September 2016). Please contact your instructor or School office for information on start dates for individual courses, as Blackboard availability always reflects what the instructor has specified.