From looking at the phpadmin, this should be the correct setting:
PHP Code:
// ****** DATABASE NAME ******
// This is the name of the database where your vBulletin will be located.
// This must be created by your webhost.
$config['Database']['dbname'] = 'sunshine_sun';
// ****** TABLE PREFIX ******
// Prefix that your vBulletin tables have in the database.
$config['Database']['tableprefix'] = 'sun';
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