Hit Publish and your EPK goes live at submithub.com/epk/your-slug. You can change the slug before publishing. Copy link gives you the URL to paste into emails and bios. Unpublish takes it offline without deleting it, and your saved edits stay.
Views
The Views button in the publish box shows total views, the last 30 days and your top 10 sources, so you can see which emails or posts got opened. Your own visits count too; known crawlers don't.
Making changes
Edits don't go live until you save. The save bar appears whenever something's unsaved, and your live page keeps showing the last saved version until then.