Jim, it is all part of the link in the first post. I switched to vessels, search all, pasted in Zim Shenzhen and clicked search, then clicked on Zim Shenzhen, then on the left side of the screen located this
Last Position Received:
Area: Mediterranean
Latitude/Longitude: 37.67275˚ / -0.4541833˚ (Map)
Currently in Port:
Last Known Port: </B>
MARSEILLE
Info Received: 2d 20h 52min 50s ago
Not Currently in Range
Itineraries History
and clicked on the Itineraries history link. You can then see its route if you click on the Show on Map link.
Edit: Or, as I just discovered, click Itineraries History above, it takes you right there.