1 & 2. Please make sure if you’ve been Google Map API Key on the JPhotolio Dashboard > General Setting > Google Map.
3. Please provide us the page url based on the problem that you mention on above.
4. Unfortunately we don’t provide those kind of option on footer. You need to do some changes to achieve that. If you interest you can use our Custom Service right here http://support.jegtheme.com/custom-change-service/