How to add a new person ? (2015)

Hello, I think the title say it all.
Im trying but i can't do it. Can soembody explain to me how to add a new person here or id loves to gave few screenshots showing how to do it.

There's a generic message that exists already and explains the process. Click here to see it:

www.listal.com/search/jjdfd

@grl
You might also want take a look at what I wrote in this thread.
www.listal.com/topic/adding-a-person-to-listal