how to use the tag plugin in the elgg site . i installed the plugin and do the steps follows:

1. Copy the tidypics plugin folder into the mod folder on your server,
2. Enable the plugin in the admin section of your site,
3. Check if there's an "Upgrade" button visible on the Tidypics plugin settings page and if yes, FIRST make a DATABASE BACKUP and then execute the upgrade,
4. Configure the plugin settings.

but i dont know how to use that plugin and which configuration settins are changed?

the tag option is cannot working tell me about this.