Hi Mike,
The database only backup does not come with an installer. You have to restore the resulting MySQL dump (the .sql file) with a suitable tool. I suggest either of the following two:
- Most (all?) hosts have phpMyAdmin integrated in their hosting control panel. It goes without saying, you can use it to restore the SQL file of one site to the other.
- If you want something fast and reliable, there's also
Alexey Ozerov's bigdump.php. This is the code upon which the Joomla! installer's database installer code is based and large parts of it have been used in the Akeeba Backup Installer. It's a breeze to use and I recommend it without hesitation for restoring database-only backups when all you have is FTP and database access.
Nicholas K. Dionysopoulos
Lead Developer and Director
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