To use the packaging program, run it with a version 3 z-code game file as argument.
This will generate several .BX files to be loaded into REX blocks.  Once they have
been loaded into REX blocks on your Model 100, installing the one whose name ends in
0 should start the game running.

FOR EXAMPLE, assuming you have the ZORK I game file ZORK1.DAT:
 From a command line shell:
  $ z100pkg ZORK1.DAT
 produces ZORK10.BX, ZORK11.BX and ZORK12.BX.  Load them all into REX blocks on
 your Model 100 using the ROM Group page of REX manager.  Then in that same REX
 manager page select ZORK10.BX and press enter - the game should start.
