Denise, I haven't had the terms and don't know the situation as you do, but I also think it might be a good thing to show yourself to the business.
I only know CNN from tv, but a quick look at CNN money makes me believe it's a serious platform for companies and interested people. Not some sort of small regional forum, where I too wouldn't be too happy posting my lifeline plus headshot onto.

As I get the idea that you are invited to a serious platform, I would personally suggest to take the chance and hopefully get something out of it. As for the essay I would think a positive look at your situation would work better than to list all the negatives on being unemployed and having difficulties finding work.

Anyway, I think maybe getting a few hundred bucks for the photo would have been a better choice for you at the moment, but this might just as well turn into something that you will get a lot more out of.

Good luck whatever you decide to do.