If you generated "standalone" script, all the authentication values are in the same file in form like follows:
 	
	| $site["dbhost"]   = '127.0.0.1'; $site["dbport"]   = '3306';
 $site["dbname"]   = 'mysql';
 $site["dblogin"]  = 'root';
 $site["dbpass"]   = '';
 | 
If you generated a non-standalone script and checked "generate config file", all the authentication values are stored in config.inc.php file and it contains all the values shown above.
If you generated a non-standalone script and didn't check "generate config file", wizard assumes that you already have config.inc.php with all proper values and does not alter them.