Problem installing aggregate plugin on Cacti 0.8.8g

[PPNIEVA]

Hello community,

Please your with this problem I'm having,

I just finished installing Cacti 0.8.8g on my CentOS 6.3 and now I require to install the aggregate plugin to graph different interfaces that carry the same traffic service. I know that this version has the Plugin Arquitecture V3.1 embedded so I didn't have to install it. But now when I download and decompressed the plugin on the plugin folder (/usr/share/cacti/plugins) the plugin doesn't appear on the Plugin Management window like it should be.

Please your help, am i missing something? I've followed this guide on Youtube for 0.8.8a.
https://www.youtube.com/watch?v=8cCP4j6LKG0


Thanks in advance,

Regards,