Quote Originally Posted by GazLuvsStace
I am just about to install this module and I am conerned about overwriting existing PHP files. In the past, addons that simply overwrite existing files, usually break the code. I have noticed that the following files will be overwritten:

admin/includes/modules/category_product_listing.php
includes/functions/html_output.php
includes/modules/additional_images.php
includes/modules/main_product_image.php
includes/modules/pages/popup_image/header_php.php
includes/modules/pages/popup_image_additional/header_php.php
includes/template_default/popup_image_additional/tpl_main_page.php

Is it safe to overwrite these files? How can I be sure that a more recent update to Zen-Cart did not change any of these files (and would therefore be broken if I overwite them)? just wondering it would still work if i pur them in template folder (as in the locations they need to be tho)
FIRST BACKUP!
No overides in admin. So overwrite.

Same with includes/functions

Theory says you should be able to override /includes/modules by using /includes/modules/YOUR_TEMPLATE.

But that does not always work. So for IH2 Final I suggest overwriting files in /includes/modules (that's what I did).

And also overwrite the two files in 'pages' subdirs. Did I say backup first?

But use overrides for all templates.
includes/YOUR_TEMPLATE/popup_image_additional/tpl_main_page.php

IH2 Final was released AFTER Zen Cart 1.3.0.1. Tim always uses latest Zen Cart files in his updates. But you should always compare files with a compare utility to before overwriting. (e.g. Beyond Compare or WinMerge). To ensure you will not be overwrite your own customizations and ensure you have correct Zen Cart code revision.

Woody