JE is designed to be installed over a standard distribution of Linux such as Slackware or SLS. The current version, JE-0.9.3, requires the shared library of libc-4.5.8 (SHARED_VERSION hereafter) or newer and libX-3.1.0 (XF_SHARED_VERSION) or greater, both of which are prepared in the JE1 disk set.
Note that the current JE assumes you have a shadow password system, but this requirement is expected to be removed very soon.