This is the plugin I’m talking about:
Please see this thread below for the gist of what I’m trying to accomplish. I can’t possibly be the first person to do this, but I can’t find a detailed tutorial anywhere! The developer’s FAQ isn’t of much use to someone who doesn’t know PHP.
The developer sort of pointed me in the right direction, but I don’t think he will help me any further than this without me paying him. 
I’m still rather vague about what exactly I need to do here beyond “make a custom filter in your theme’s functions.php”
I would expect a chunk of code that goes something like this, where I could simply copy and paste to re-order them and get the output order that I want (pseudocode):
[testimonial text div]
[title text div]
[testimonial name div]
[etc..]
I’ve spent quite some time poring over the default plugin code, but I have no idea where to even begin with this.
Any help would be hugely appreciated.
Thanks