title: Problem with installing rails-3 plugins (Win7)
body: <p>I'm newbie at ruby, I spent couple hours trying to find the way to install the plugin... but without any success, so here I am, very frustrated... please help.</p>
  
  <p>OS: W7
  ruby: ruby 1.9.2
  rails: 3.0.5
  msysgit: 1.7.4 (i did not any changes, just installation)
  (is there anything else I should of mentioned?)</p>
  
  <pre><code>ruby script/plugin install git://github.com/thoughtbot/paperclip.git/
  C:\Ruby\Ruby192\bin\ruby.exe: Permission denied -- script/plugin (LoadError)
  </code></pre>
  
  <p>Thank you!</p>