All items that have reached there completion date but which have not been automatically relisted can be found here.  You can Delete the items or list a similar item.  You can also relist items from the list by selecting the check box to the left of the items image and clicking ‘Relist’ from the bottom menu.  Once an item has been relisted it will be moved to Selling -> Open where it can be edited if required.

 

Note that if premium features were present on the original listing then you will be redirected to the payment page.  To relist the item but remove the premium features, you can use the List Similar feature.