I have just Uploaded the New Version (!.7.1) to the Downloads/Other section. Full download and PDF downloads now on page #2. (Beta version is the same, but EXE only, & on page 1)

Download, Unzip to C:\Ezilathe or a temporary directory (if updating), and copy the files required to the C:\Ezilathe.
This version has many changes / corrections that should help in the generation of G-code for your lathe.
Please follow the PDF (Separate download) to assist.

Mach4 - Now supported at least in Basic form.
Generates G-code from DXF's and Simulates. - Tried on Mach4 No Issues.
G32 & G76 Threading - Working, but some issues on my Lathe with Mach4 (Early days however, issues could be me).
G32 will not simulate, But runs on lathe - Pullout not as expected ???
I note the example in Mach4 Lathe programming guide simply pulls out with G00. Hardly a Thread run-out.
G76 Simulates / Runs, but Cuts with half the expected passes. (Try Double in Ezilathe)
All threading - Spindle is not stable, seems to cut-out at start of thread.
That said, Double checked all my code, seems to be correct, but a few questions.
Note that all example date supplied is mainly Mach3, However the 2nd Configured lathe is set as per my testing of mach4, and has good G codes for mach4.