Which one is the real backgrounDrb?

Hi,

I’m having problem not knowing which one of these plugins is the
official?

script/plugin install svn://rubyforge.org//var/svn/backgroundrb
script/plugin install
http://opensvn.csie.org/ezra/rails/plugins/backgroundrb/
script/plugin install
http://svn.devjavu.com/backgroundrb/tags/release-0.2.1

every one of those have different files? and when I run them they have
different errors :smiley: