So far as I can tell the old / original ljarchive still works. Mine was from 2012 I think.
The website linked from my "about/help" section was this:
ljArchive at sourceforget.net
Not much to see here yet. The sourceforge project page is at
http://sourceforge.net/projects/ljarchive/ and the original developer's site is at
http://www.fawx.com/ljArchive/.
The latest release is 0.9.5, released on July 27th, 2005.