Hi Katheryn! You should have received an email with final race instructions and also a link to download your waiver to print out. Here is a link to the
Princess Half Marathon website. If you click on the "Event Details" tab on the left, it will bring up a page where you can download and print out your final race instructions and also your waiver. The instruction booklet is four pages and has everything you need to know about getting ready for the race.
If you can't find your waiver link, they are going to have plenty of computers and printers at the expo for runners to print them out there. If you have any trouble there, they also have a "runners relations" booth to help you out.
Your corral placement will be on your runners bib that you pick up at the expo. If you have proof of time and think you should move up, they can also help you do that at the runners relations booth.
I hope this helps! Good luck at the race!!