Custom Template confusion - language file

Hi folks

I'm happily creating my own template version of some language files but getting confused about the folder structure.

There is a payment module file "moneyorder.php" that I want to tweak. The english version is found here:

/includes/languages/english/modules/payment/moneyorder.php

Assuming I have a template called "CUSTOM", where should I put my edited version of the file? I've tried several places, and none appear to work.

I've read the Wiki pages and Tutorials, but to no avail.

Thanks in advance
Rich

BASE RULE:

Everywhere you have a "classic" folder that already exists - -

Then all files(NOT FOLDERS) at that level can be overridden and placed into a folder you create there named for your template

richard,

following Kobra's advice, you'd put it here...

/includes/languages/english/modules/payment/CUSTOM/moneyorder.php

Excellent stuff people....thank you a zillion!