Hi,
You are going about this incorrectly from my perspective since you are doing the equivalent of building a house by dragging a stuffed giraffe along with some yellow curtains and asking the contractors to start using yellow cement or otherwise a whole new house may be needed to match the color of the giraffe.
Bad analogy but I hope you understand that this approach quickly jumps out as the wrong way to go about the overall process of construction, Such is not the case when building websites based on a framework and a theme , as it isn't that easy to tell where to start and where not to. I would recommend for you to google and read an outline of a software/website development life-cycle for non-technical managers, will give you a better idea of the process, if the answer interests you.
After ensuring that the theme works and noting down what's not working an assessment is made regarding the best way to integrate the remaining requirements into the framework which includes the ones you touched upon - light-boxes and testimonials. Now that there is a framework and a flow to the program its easier to see how best to attach it so that it too receives the full benefit of the framework libraries (or functions).
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The error is seen in either firebug or chrome developer tools as a javascript error in the console.
"I.. must understand the problem so I can explain it to them" ...
Imagine you are Captain Kirk and on the bridge in middle of chaos, as Enterprise is under attack by a powerful force. 'The ship is breaking up captain. Spock is dying again but he managed to say that he thinks this infusion gadget might be connected to all of this after all. We are. still not sure 100% but by its position it either regulates the surface temperature of toilet seats in one of the cafeterias or it is sharing variable names with the cpu of the entire star-ship - hard to tell -
... wait. here is documentation... and its a syntax error caused by an unexpected token which i think . well it's sort of like the time your uncle Doogie showed up unannounced for a family party.no big deal, just another plate for a favorite uncle... wait.. oh no, the token was not only unexpected but illegal. Uncle Doogie wasn't in the peace corps for a decade. He relapsed and broke out of the prison psych ward, is high on angel dust again, and is driving here to sacrifice us to the ancient masters in order to end global warming for ever. Perimeter breached, Fazers on full power.
....the green wire .... now Jim...cut it fast....(end transmission)
Does Jim cut the wire and save the universe once again? Will the mystery of the plugin be solved.. What the heck does it do and is that important? Or will the crew be trapped alone in deep space without even the basic comfort of a temperature regulated toilet seat to ease their suffering for the few hours of remaining alive?
*We may never know until the purpose of the plugin is understood, and a risk assessment is created to examine the overall importance of this plugin and consequences of its various failures in light of the business logic and the project requirements* ... to be presented 7am tomorrow sharp by said PM.. :)
(Sorry, Couldn't resist. I got a Masters Degree with Honors in StarTrek. So this is just something I do for a chance to train under Captain Kirk's great-grandfather. )
Live long and prosper,
Nick