Well I thought notifications were working for the ratings and comments. However, as it turns out, it is only send emails to the admin account, but none of the registered users.
I'm running TWG version 1.8.8, and I'm running the site on 1and1's Business Linux package.. and I have $enable_email_sending=true;
Emails are sent to the admin and emails are initially sent to users when they register letting them know that they are registered. However, notifications about comments and ratings are only sent to the admin account. In addition, the manual admin email that can be sent to users notifying them of updates to the gallery also doesn't work.
Has anybody ever gotten this to work?