cacti not in default directory

[lavtech]

I am noticing that cacti did not install in the /var/www/html/cacti directory, and therefore don't know where the plugin directory is. when i got to the plugin management page it is plank like blank blank.

I do see there are 2 directories
/usr/local/share/cacti/plugins
/usr/share/cacti/plugins

but when I copy the pluggins to those dir's still nothing.
is there a symbolic link somewhere. givin that cacti is not in the www/html/cacti

cacti version 1.2.3
os is dabien 9