Not working for me either. I customized at the options page, and know I have the newest version, since I downloaded it only today. I checked to see if I also had to enable it as a widget for some reason — that’s been the case with some other plugins — but so far, no go. Any ideas?
Checking back in to say this plugin has helped completely with the first issue of removing page children from the main navigation: http://gmurphey.com/2006/10/05/wordpress-plugin-page-link-manager/
I have the exact same two questions. Looking forward to any enlightenment y’all can offer!