In the fire no frying pan

Hi
i have a machine that a friend of mine is doing and it seems as he has had a accident and is out off it for a bit .
linuxcnc is loaded 
switches are on mesa7184 board
the drives are on a mesa 7177 board 
that is connected to mesa 7194t
and ther is a extra meas7184 as well
My big problem is i have no clue on how to go on with this first time i have seen it ,
i need some help please 

Maybe post some pictures of the whole affair as that would give us an idea of what we are talking about.

Also, if there was a working configuration, launching
LinuxCNC (say by typing "linuxcnc" in a terminal window)
will bring up the configuration selector and the default choice
will be the last configuration that had been run.

the pc starts up and all the boards are working i am working on the wiring of all the parts now

how do i download the ladder and the setup file to put it here .
i need to add some extra inputs and out puts to the control

hi the one board is in the pendant and the rest are in the main panel .
i