When I logged back in to edit my application, I checked the roles that are open and there are several part-time and seasonal positions open. I recommend checking on the site to see if the role youre interested in is open.
If it is, click on "Apply for position" and fill out or modify your application. Once your done, you'll need to check your e-mail, they'll send a automatic response saying you have now applied for the position and will contact you soon.
I just applied for part-time attractions and i'm now waiting for a call or that e-mail for that web-based interview.