[Plugin: All-in-One Event Calendar] Calender hides tabs

When we installed the all-in-one calender we noticed that the calender are hiding the tabs that shows different pages on our webbpage on the first page.
Also, when you go in to an event in the calender you see the information in the left corner of the page. http://www.ikff.se/

Can this be solwed?

http://wordpress.org/extend/plugins/all-in-one-event-calendar/