I'll be the first. Though i dont have a "full Machine center". The post processor is a simple text file. They are pretty much customizable. They just released their new scripting engine so if the base engine doesnt produce something you need, you can script it.
The package doesnt do "full 4th-5th" work (YET....it's comming) But does 4th indexing and wrapping.
You can probably find a thread here that has someones post in it. You can download that and look in it with notepad to see what it looks like. If you cant make heads or tails of it at all, the package will include a simple post editor that formats the post into a Graphical User Interface that allows you to see the layout of the land. You can also just turn on debug statements and the output code will include a line that points to the command in the post that created it. Should be pretty simple for a guy that can run a machine center.
Anyway, good luck with your parusing.