Won't show anything under "Select Posts"

New to W4 post list… I am trying to set up my lists, but it will not show any posts to select. It has the section with the title “Select Posts”, but nothing is under it. I am on a multi-site network. Would this be why? It is WooThemes Canvas. Do you have any suggestions? Thanks.

http://obrerofiel.com/

http://wordpress.org/extend/plugins/w4-post-list/