MySQL host  localhost, sql.multimania.com, toto.freesurf.fr
user  user login given by your host provider
Password  user password given by your host provider
Database name  also given by your host provider
Database table prefix  database tables names will be prefixed with it (enables you to manage better your tables)
 
Where do I find the  user and password and database name.I tried my ftp login but it did not work.