On the T:\ drive (T:\Digitization\ETD), create a folder that will contain the ZIP folders:
If you've closed your WS-FTP window, or if it has timed out, reopen it.
Click on the Refresh tab, just to be sure that the folder appears in the folder T:\Digitization\ETD, within WS-FTP

Open that folder and you should now be greeted with a green up arrow with two dots and several blue drive folder icons. Now we can transfer the files over.
On the right side, select all of the files that you want to move. Once they're selected, click on the arrow pointing to the left, located in the center.

This will transfer all of the files from the online server to your newly created folder on the T:\ drive.