1) Please go to the Tools menu > Languages.
Note that there are three options here, the Display language, Primary
Language and Secondary Language. You will need to have the appropriate
languages selected. The appropriate languages would be ones you and your
family would use with the family site. For example, my family would have
English and Italian selected. This will allow my Mother to view the family
tree in Italian and yet, still allow me to view the tree in English.
2) Next, please again go to Tools menu -> Translation Wizard to
translate the names to the Secondary Language. Why must you do this? The
original entry of data for the Primary Language must be "translated" or
converted into the Secondary Language. The Translation Wizard is a fast and
effective way to do so. After this, republish and the tree should show fine.