how do I get a older version of restful_authentication

I'm currently running rails 1.2.6 and I've got the new
restful_authentication running, unfortunately, the new version of the
plugin does not support the older rails very well.

how can I get an older version of restful_authentication (pre rails
2.0.2)?

I'm getting this error:

undefined method `authenticate_with_http_basic' when I put

"include AuthenticatedSystem" in the app controller.

svn co -r some_version_that_works_with_rails_126
http://svn.techno-weenie.net/projects/plugins/restful_authentication/