Looks like Widgets Reloaded is not working on WordPress 3.1.3.
I get the following error displayed before the list I want is displayed. Its as if its working, but spitting out the following error.
Warning: join() [function.join]: Invalid arguments passed in /home/blahblah/public_html/sitename/wp-content/plugins/widgets-reloaded/widget-pages.php on line 47
Let me know if you have any questions.