Turning - G92 Problem

[maxiwatters]

Hello for everybody,
I'm really new working on CNC turning, and I'm having problems with axis references.
I'm working in a Old Milacron Cinturn 1212 with Acramatic 850 Control.
I've read the manual and I've set up Zero program with G92 command in MDI Screen. It has moved the axis references (As we expect) and, working on MDI line by line, it's doing really well.
My problem is when we write a program, it moves the Zero again to Zero machine, and it causes a lot of issues, as you can see.
If I already moved Zero to Zero Program, Why do it reset it? Should I "call" Zero into the program?
if yes, How Can I call it? I've worked on a Milling machine before, and Zero stayed where we put, it never returned to Zero machine.
I'll really apreciate if somebody could help me, I really need it.
Sorry for my English, I'm writtting from Argentina.

Regards