The discussion system is really easy to use.
To read the majority of the messages you just need to follow the "Cinematography Discussions" link that is at the top of the page and select the list you want to read.
If you want to post messages rather than just read then you will have to join the list as a member, this is free although your support is most appreciated if you decide to contribute.
There are 2 buttons on the main page of each discussion group, one to join and one to log in once you have joined.
You will need to join each list individually.
You will get an email asking for confirmation that you want to join reply to the email confirming that you want to join.
If you don't reply to this email you will not be able to post to any of the discussion lists.
Once you are logged in you will see a link to subscription, clicking on this will give you access to the admin system and you can change any of the options of the group.
They can be set to send every message as contributed, a daily digest or no mail messages and use the web interface only.
There is detailed help on using the discussion system here
That's it folks.