After WS_FTP moves the files to the server they will appear on both the left and the right, as they are on both computers.  Information about the transfer is displayed in the pane at the bottom of the program. 

Should a firewall interfere with the connection, the problem will most likely manifest during the upload stage.  This may be corrected by altering the passive transfers setting found in the 'Options' section. To continue this tutorial click the 'Options' button in the screenshot below.