Connecting with Evolution:

• Find your calendar URL at: http://go.imageway.com/caldav/calendars/
  

Select your username and then find your calendar.
Eg. for John Smith: http://go.imageway.com/caldav/calendars/jsmith/smith-john-1/

• Connecting to a CalDAV server is done through the "New > Create new calendar" dialog. In this dialog it is possible to specify a CalDAV location. (Replace http(s) with caldav)

To setup TODO lists through Evolution works the exact same (select New tasklist instead of calendar).

When you're done click at the button "Save and use". The screen below appears and you can click on "Sync now" to start the synchronization process.