Script repository, no location for install_script.py?

I have been working through the e-neutrons tutorial of the Mantid script repository. I have downloaded the repository for Mantid plot however the tutorial says the file “install_script.py” needs to be installed from the muesr folder which is in the muon folder. Clicking on the file should automatically download the file however the download failed, producing a warning which says the file could not be found at http://download.mantidproject.org/scriptrepository/muon/muesr/install_script.py . Is this the correct link for the file location?