Login to your account and then look in the top right hand corner for the link my account. Click on the my account link and then a statistics page will show up listing the number of views per page of all your hubs.
Look for the hubs that are in red as these have not been published. Find the hub you want to edit and press the edit button besides the hub that you want to edit.
Your unpublished hub will load up and make modifications as necessary.