That link takes you to a general listing for the festival - the event doesn't have a dedicated website. If you read the listing though, it gives contact info for further details. If you have specific queries, contact the people there - not everything is set in stone yet, though. I understand that an interim newsletter will be sent out to the mailing list very soon - if you leave your details and get put on the mailing list, you will get a copy sent in the post. The full programme usually comes out about a week / 10 days before the event. For accommodation enquiries, the Tourist information Centre number is also on that listing - the event does not run a festival campsite but there are sites in the area.