When I open the "Export" the middle part is missing, I only have the option the export the item to a recent place I have accessed. I have the save as part and then the drop down goes to the part that says: Export: Images Only section. I also do not have the red, yellow and green buttons on the top left. How do I expand this drop down so I can see all of the contents of my computer? I am using a MacBook Pro.
Click that little "up" arrow next to "surftour_home.png".
Alternatively, click the dropdown that says "images" in your screenshot and you will see the hierarchy of the preceding folders in that path.
Hope that helps.