Point taken, but I think there is considerable value in "reigning in the horses" (so to speak). What Carol is trying to achieve is fundamentally to make an improvement on her website, and has the view that a "sticking plaster" solution is going to do the trick. For some reason, she has the view that this skin-switcher will solve her challenge. Technical issues aside, to me the whole point of using zencart is to make a living out of it. If not, just install wordpress and blog away.
So when I see people making "technical" decisions that (de facto) put the business they are doing at risk (or greater risk), then the importance of the discussion changes from just geek-speak, to one of what's best for the business. It's like the board of directors arguing over the colour of the company stationery while the factory is on fire.
While Carol might be able to "technically" be guided through how this module can be configured, I think it is perhaps more valuable to her to show her what really needs to be done in order to consolidate her business. Installing this module may in all likelihood give the APPEARANCE of a fix, but at the heart of it, it will be detrimental to her basic objectives in doing it.
Or maybe I'm wrong... Do I really care if Carol's website gets shunted by Google? Hmmmm, maybe I do... I don't like to see promising businesses make bad decisions.