Got it. Loaded filezilla on the driver station laptop (declined the extra program it tries to install).
In File/Site-Manager, added new site, called it roborio, Host 172.22.11.2, Port 22, Protocol SFTP, Login-Type Normal, User lvuser, Password (blank).
Upon Connect, it places you right into the /home/lvuser directory (right-side panel). Just need to navigate to the local directory where the new FRCUserProgram.jar file resides (left-side panel), and double-click it to upload to roborio.
Disconnect and press Reset on the roborio. Run Driver Station.
Easy-Peasy
Thanks everybody.
gil