Only registered users can post comments.
And all comments comes to my moderation.
How I can get e-mail notification on comments given?

The only way i know to get an email when a comment is added is k2autonotify by jiliko.net and k2joom.com
Currently it is only avaliable for Joomla 1.5

hey,

If that can help I've tried this comments component : stackideas.com/komento.html

It's free, easy to setup, and working like a charm with K2

Eric