Note the white pull down selection box in the middle of the screen. Make sure this shows the domain that you want to work in. Use the down arrow to select the proper domain, if necessary.
The buttons on the left:
Most of the work you will do is after you select Users from this screen.
Bulletins is a way to send a message to all users of a domain. Unfortunately, you have to have domain admin rights to use this feature and you have to use it from this menu. It would be too confusing and inconvenient for regular users to navigate here to use it.
The Redirect buttons here are for domain level redirection, which is called forwarders or groups in other email software. To use a redirect, two notes: Use the full email address of where the email will go and if you need to redirect to more than one email account, seperate the entries with commas, again use the full email address.
NOTE: If there is a syntax error in a redirect, Outlook and Outlook Express will give you an error message when sending to them that is not helpful to resolve the underlying problem. Try again with Thunderbird or WebMail to get a useable error message.