Simple captcha instllation problems

I am running XP. Downloaded simple captcha from expressica, unzipped
vendor/plugin. Ran

rake simple_captcha:setup.
Gives me error: rake aborted! don’t know how to build task ‘simple
I checked rails version by
gem list rails
Gives me rails <2.3.5, 1,2,2>
can someone tell me how to fix this?

View this message in context:
Sent from the RubyOnRails Users mailing list archive at