I don't have time read everything yet so I'll apologize first if anyone gets offended for any reason. My comment is for Razz's sake at the moment and not directed at anyone...
Razz, I think you can do that workout just fine. Don't let anything discourage you. If I can do the Insanity workout when I was out of shape, you too can do this workout. I'll tell you why later...because I gotta run now.
Sorry, I really should reply when I have more time but I don't want you to think you can't do it. You really can. I'll get back to this post in a few hours. Hang in there, Razz. Believe in yourself.
