I go to the "get plugins" section and a thing pops up and says this page cannot be displayed. Can someone please help?
That's strange that that is happening for you. You can just go to http://dev.bukkit.org/ to find plugins there.
Check out either of these links: http://dev.bukkit.org/bukkit-plugins/ http://www.curse.com/bukkit-plugins/minecraft They both show the same plugins.