The Rtex Plugin (LaTeX view engine for Rails) has moved to it’s own RubyForge project.
The subversion repository is now at svn://rubyforge.org/var/svn/rtex/trunk. I’m be making some non-backwards-compatible modifications to the way the plugin is configured during the next few days, but the current stable release will always be available at tt>svn://rubyforge.org/var/svn/rtex/tags/legacy.