Hi, The script.aculo.us source files got a new home on the Rails SVN. To get the very latest version (and maybe submit an patch, hint, hint!), point your SVN to: svn co http://dev.rubyonrails.org/svn/rails/spinoffs/scriptaculous You can also browse the Rails Trac over at http://dev.rubyonrails.org/browser/spinoffs/scriptaculous/ -- Thomas