Setting up Eclipse for Ruby development is not that difficult, I did not take screen shots when I set up my eclipse for Ruby development, but I do have a screen shot of what the installed plugins look like. I hope this is enough to help anyone who might be having issue getting the plugin installed. The install process is pretty simple Eclipse does all of the hard work when you use the update URL for the plugin.
I did have a few problems trying to install this plugin, I was getting conflict message with the PHP development plugin (PDT). I wish I would have documented the steps, but I do have the update site URL I used for the installation.