Red beside a member's posts means they're either logged out or invisible. Green means the member is online and visible.

The logout option is just under your welcome message and notifications (ie private messaging)...just to the right of "quick links" on the bar containing multiple links and user options.

Yes, you'll always show green to yourself when logged in. It will also tell you who's still online within any thread you're reading as a quick option (unless a member has set their status to invisible).

So, if you're invisible, you will show green to yourself but red to other members.

Hope that helps!

KD