How to install ActiveScaffold plugin?

I am upgrading to raills 2.3.2. I’m having problems with AjaxScaffold which has been deprecated. I am a linux novice. The web site http://activescaffold.com/ has the following command: script/plugin install git://github.com/activescaffold/active_scaffold.git I tried the above and also ruby script/plugin … Nothing happens.

Any ideas?

Do you have git installed?