Notifications problem

Hi all,

On creation of a ticket, I’d like a group of users to be notified about
new tickets. Then I want only the ticket owner to be notified of future
correspondence.

How can I do that?

Would rt-notify-group do the job? If yes is it possible to launch it
through a scrip?

Also the utility doesn’t seem to be part of my distribution (RT 3.4.5
Fedora RPM)…

Regards,
Thibaut