Your dashboard is your EventWax home. It holds any number of events within it.
If you've only just signed up for an account, your dashboard is going to look a tad bare. Before you do anything else, you will need to create a new event by clicking "New Event" in the Event tab menu at the top of the page.
The Account tab will take you to a page allowing you to change details such as your display name, email address, and password.
Once you have set up events, your dashboard will show you an overview of your events, and the activity in them.