In ZC v1.5.x and lower, files named like this will not auto-load:
/includes/templates/Ms/jscript/jquery/jquery-1.10.2.min.js

For javascript, it only automatically loads files in the following patterns:
/includes/templates/Ms/jscript/jscript*.php
/includes/templates/Ms/jscript/jscript*.js
/includes/modules/pages/PAGE_NAME/jscript*.php
/includes/modules/pages/PAGE_NAME/jscript*.js

So, I suspect you've got a jscriptXXXXXX.php file in one of those places (probably in includes/modules/pages/index/jscriptXXXXXX.php) that's got some code in it to output the code that loads the jquery stuff.
If it's in the pages/index/ folder then you could probably copy that file to the pages/shopping_cart/ folder to trigger it to load there too.
There are several ways to do it. It will help to know how you're currently doing it.