If you can't see your CS101 course when you login to MyITLab, be sure you logged in with the correct Pearson account. When a student can't see a MyITLab section they have enrolled in, it is normally because the course is associated with a different Pearson account.
If you used the 14-day temporary access option to register for MyITLab, you will not be able to access your course after the 14 days have elapsed. Your work will remain saved. If you need to go back into MyITLab, you will need to purchase an access code. See this Pearson support document for instructions.