Thanks for your reply.
Looking at the tables in my new DB, and if I understand correctly, I don't see any prefix with underscores
Quote:+--------------------+
| Tables_in_zenphoto |
+--------------------+
| .admin_to_object |
| .administrators |
| .albums |
| .captcha |
| .comments |
| .images |
| .menu |
| .news |
| .news2cat |
| .news_categories |
| .obj_to_tag |
| .options |
| .pages |
| .plugin_storage |
| .search_cache |
| .tags |
+--------------------+
Where you mention 'change your prefix', are you referring to something elsewhere ?
Regarding your second point, and restoring my backup from a 1.4.5.5 version to a 1.4.5.9 version.
Do I simply put 1.4.5.9 in place on my new host, and copy something from my 1.4.5.5 version zenphoto directory ( saved from the old host ) into the new 1.4.5.9 zenphoto directory, and then run setup, so I see the "restore from backup" option ?
If so, could you please point out what I have to copy from the old to the new ?