Couldn't find 'rspec' generator

Ruby
1

Hello,
I want to add RSpec as a rails plugin to a new rails project. I am
using Windows Vista. I did:

ruby script/plugin install git://github.com/dchelimsky/rspec.git
ruby script/plugin install git://github.com/dchelimsky/rspec-rails.git

when I do ‘ruby script/generate rspec’ I get ‘Couldn’t find ‘rspec’
generator’. Please help. I am using ruby version 1.8.6 and rails
version 2.3.4

thanks, Prasanna