Need help finding this...software.

[labelas@hotmail.com (Labelas Enoreth)]

Hey, anyone who can help, thanks...looked fairly well through the FTP
archives on ground and cabi, and AOL's archives, yet didn't find this
stuff...anyone out there can help, perhaps?
'Prosel ZAP' (need it or an equivalent hex/data editor)
ACU (have a bunch of files compressed with 'ACU', which I've never heard of...)
Any of this IIgs-compatible System software, like GS/OS 5.0, 5.0.1 (I have
everything above those through 6.0.1) or anything previous to 5.0 (was
there a 4.x which worked, other than in IIe emulation mode?) And I've
heard talk that there was an unreleased 6.0.2, or is this just a
rumor?...I'm trying to make my own little...archive, I guess...of the
system software, for no specific reason.