Print at home tickets are your tickets. Just print them off on your home printer and use them to enter the turnstiles when you get to the park. They are bigger than regular tickets though. That's not really a problem if you are only going one day but can be inconveneint for tickets you have to use for 7 days. You can fold them up and put them in a lanyard though.
If that is something you don't want to do, just pick the electronic kiosk pickup. With those, you just go to the electronic ticketing machine at either park and print off regular tickets. You will need your confirmation number and the credit card you paid with. Personally, I'd probably do that for 7 day tickets.