I’m trying to install ElScreen that allows multi-tab editing in Emacs.

One of its prerequisite is call APEL (A Portable Emacs Library). However, it seems that I cannot find a usable download link of APEL anywhere: wikipedia, Emacs-wiki, and ElScreen’s README file all give broken links. Are there still anyone using this package and knows how to install? Thanks!
If you use Ubuntu (and maybe also Debian) there’s the possibility of installing apel from the repositories. See for example: http://packages.ubuntu.com/precise/apel