Most international students will be testing for EIL and WILL NOT register themselves for classes. Your letter of acceptance should indicate if you will be testing for placement in EIL.
Don't worry!! After you arrive on campus and take the test on the Thursday before classes start you will be registered for classes by advisors AFTER you test. You will be able to see your class schedule on mybyuh by Friday at noon. Classes will start on Monday and you will be ready to go.