Revised 2016.08.29 13:20PDT
Click on the small server icon on the far left under File.
Choose New Site and fill out the fields as follows, but with your own username.
Click on the down arrow next to the server icon, and pick barney.
The first time you connect, you won't have a key. Please check the box and click okay.
You should now see your computer on the left and barney on the right. Click and drag files to the right to copy them.
The uploaded files will now be visible on the right. Select and right click on them.
Choose permissions, then set them to match these checkboxes (or 755).