I spent few hours with this "small" problem
first the source [I work by the book] for this plugin is not working ... because there is no source at this address.
Well it's in code archive ... but what this help me if I can't (don't know how - I also google this) run damn plugin in rails from my HDD.
ruby script/plugin install acts_as_taggable
Then I google some more and find famous "Acts As Taggable On Steroids". I manage to install the plugin, and everything works fine - almost ... tags were not dispayed in show.rhtml using [<%= render artial => 'tag', :collection => @story.tags %>]
I don't want to be long so just use this way:
install acts_as_taggable using:
ruby script/plugin http://dev.rubyonrails.com/svn/rails/plugins/legacy/acts_as_taggable/
and that's all folks
... I hope this will be useful to someone