Hello,
1) Google has instructions on where to add this. Usually it is in the index.php before the closing </body> tag.
2) There aren't any positions above the main menu other than the drop downs.
http://www.shape5.com/images/products/2015/fitness_center/module_positions.pngTo add a module you would do so in the Joomla Backend via the Module Manager and select an available position from the above link.
Regards,