I have been told that your orientation will be August 4-8, and classes will begin August 11.
By the way, the website is useless for getting any kind of info. about Year One. After you are enrolled, you'll get access to an online information source called 'blackboard', but don't even bother trying to get info. from the school of medicine general website. They'll mail you a couple of things over the summer, but not a whole lot.
That being said, feel free to email me if you need any info. about Year One.