Praps a Garmin support person can answer this.
• I managed (after a struggle and a call to help line) to use "Add to Device" to add City Navigator Europe NT to my nuvi 200.
• I then managed, by nursing the download for 9 hours (frequently restarting the d'load) to download the map onto a 8GB SD card in the nuvi and went out for a spin to check it worked.
• On my.garmin -> myMaps -> Manage maps, however, the "City Navigator Europe NT" map is still being shown as "Download Now" even though it has been downloaded, whereas all other maps (incl those on another nuvi) show as "Manage your maps with Garmin Express".
• Garmin Express lists all the maps previously downloaded and updated but it does not show "City Navigator Europe NT" which was just loaded onto the nuvi SD card and works.
I hope I don't have to spend another 9 hours nursing a download if there is a bug here . . .