Fixing wrong language variable when inserting the guest user in insta…

…ll script.

install.php

@@ -1521,7 +1521,7 @@ function process_form(the_form)
 	$db->query('INSERT INTO '.$db->prefix.'groups ('.($db_type != 'pgsql' ? 'g_id, ' : '').'g_title, g_user_title, g_moderator, g_mod_edit_users, g_mod_rename_users, g_mod_change_passwords, g_mod_ban_users, g_read_board, g_view_users, g_post_replies, g_post_topics, g_edit_posts, g_delete_posts, g_delete_topics, g_set_title, g_search, g_search_users, g_send_email, g_post_flood, g_search_flood, g_email_flood) VALUES('.($db_type != 'pgsql' ? '4, ' : '').'\''.$db->escape($lang_install['Member']).'\', NULL, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 60, 30, 60)') or error('Unable to add group', __FILE__, __LINE__, $db->error());
 
 	// Insert guest and first admin user
-	$db->query('INSERT INTO '.$db_prefix.'users (group_id, username, password, email) VALUES(3, \''.$db->escape($lang_install['Member']).'\', \''.$db->escape($lang_install['Member']).'\', \''.$db->escape($lang_install['Member']).'\')')
+	$db->query('INSERT INTO '.$db_prefix.'users (group_id, username, password, email) VALUES(3, \''.$db->escape($lang_install['Guest']).'\', \''.$db->escape($lang_install['Guest']).'\', \''.$db->escape($lang_install['Guest']).'\')')
 		or error('Unable to add guest user. Please check your configuration and try again', __FILE__, __LINE__, $db->error());
 
 	$db->query('INSERT INTO '.$db_prefix.'users (group_id, username, password, email, num_posts, last_post, registered, registration_ip, last_visit) VALUES(1, \''.$db->escape($username).'\', \''.pun_hash($password1).'\', \''.$email.'\', 1, '.$now.', '.$now.', \'127.0.0.1\', '.$now.')')