They have been turned into a spam site. However I was able to find the mod_ruby file and put it on my web site. If you want it or need it I would be happy to post it on here so you can update the install instructions to go get it from my server. I just don't want to post if you don't want it.
You can also get it from here: http://fossies.org/unix/www/apache_httpd_modules/mod_ruby-1.3.0.tar.gz/