Registration for Event? and Event Double listing

I'm setting this up for the first time. When I go to the event and click the I'm attending button, I'm taken to the WP login page - with a box that says "Excellent, few more steps! We need you to login or register to get you marked as coming!" - except that the ONLY thing a user can do from that page is login. Is this a bug?

Also, when I go to the page - then click through to the event, it is presented twice on the page.

Lastly on the event pages, the biggest date shown is the date the event post was created - not the date on which the event occurs -- this is confusing to the user...