zapx.zip is a support application giving everything you need to run a
development copy of Zap, build as 'ZapX' (edit the line near the top of
!ZapSource.h.ZapHeader and rebuild everything) alongside a more stable copy
of Zap.

zapuser.zip is probably a fairly recent copy of my ZapUser setup. No
guarantees that it'll work for you, although it should.

1.44-latest/ contains a recent complete build, which hasn't been
verified (and so isn't a 'proper' beta release) but does contain the
latest fixes and improvements.

Anything else will probably have been announced to one of the mailing lists.

James <dj@zap.tartarus.org>