quick question about overrides vs Image Handler2 addon

I am rebuilding my store from ground up as the first build I blatantly ignored the override system :)

so this time around I am attempting to use it 100%... I finally hit a bump... I am trying to install the ImageHandler2 module and it seems they dont completely use overrides. I was able to figure it out on my own for the most part... but there are a couple sections that I cant figure out.

IH2 wants to replace the following:
\includes\functions\html_output.php
\includes\modules\pages\popup_image\header_php.php
\includes\modules\pages\popup_image_additional\header_php.php

is there a way to override those instead of replacing them?

I also see that it wants to put this:
\includes\templates\template_default\jscript

into the template_default folder. shouldnt that be in:

includes\templates\my_template\jscript?

buckit:

IH2 wants to replace the following:
\includes\functions\html_output.php
\includes\modules\pages\popup_image\header_php.php
\includes\modules\pages\popup_image_additional\header_php.php

is there a way to override those instead of replacing them?No, there are no overrides for those files. You'll need to replace them.
buckit:

I also see that it wants to put this:
\includes\templates\template_default\jscript

into the template_default folder. shouldnt that be in:

includes\templates\my_template\jscript?
Either way is fine.

Thanks! just wanted to be sure before I moved forward! thanks!