The thold did not work，help

[captainhz]

1 I install the settings ,it works
2 I install the thold:
tar thold ->mv thold to /var/www/html/cacti/plugins->mysql cacti<thold->vi /include/config.php
===========
[root@monitor plugins]# ls
index.php monitor settings thold
[root@monitor plugins]#
================
/* load up old style plugins here */
$plugins = array();
//$plugins[] = 'thold';
$plugins[] = 'settings';
$plugins[] = 'thold';
$plugins[] = 'monitor';
/*
======================
but it did not work。I install monitor as this,it works
Centos , cacti 0.8.6g.PIA2.8,Thold 0.4.2

[cigamit]

Thold is no longer installed via the config file, you have to do it through the Plugin Management interface inside Cacti. Once installed, make sure to give yourself permission to view the plugin (in User Management)

[captainhz]

Thold is no longer installed via the config file, you have to do it through the Plugin Management interface inside Cacti. Once installed, make sure to give yourself permission to view the plugin (in User Management)

I have did it .
user managerment->admin->realm permissions-> plugins mangement(check in)
The form can upload JPG,or I will post the Screenshoot