There are a lot of contradicting advice, she's working out to much, and the cal counters are grossly over estimating cal burned in which she needs to lift more often.
It's not really conflicting.
There are 2 points everyone has agreed on.
1) 4 hours of eliptical are too much and the calorie burn is misleading.
2) 1 intense weight training session per week is not appropriate.
I want to explain point 2 a bit more. Repeated bouts of low intensity training builds conditioning. You can train frequently without getting sore. if you go as hard as you can without properly preparing yourself, you will get sore and it will take a week to recover. Therefore, weekly workouts are guaranteed to be painful. The answer is to take it easy, but to workout more frequently.
The conflicting info you got is that I said to train every day, Doc said to take a week off, Kenny said to workout 3 times a week. In fact we're all in agreement on on the main points.
I assumed that she would wait until her scheduled workout to start. That's the week off. Next, the priority is to prepare her muscles. That's the conditioning. Think of it like rehab. You can do very light rehab exercises 3 times/day and they don't make you sore. I just want her to get used to like workouts and you can build conditioning best with daily workouts. Once that's done, she can move to a steady state routine of 3 times a week or every second day.
Wait until her scheduled weight training day,
Do a VERY light workout consisting of 3 sets of a push, pull and squat. Body weight works best.
Progressively increase load over a period of a few weeks until weight is challenging.
Continue progressively increasing intensity as often as she is able.
Continue strength training for life.
Note: One high intensity session per week is called HIT and is recommended by a number of popular books like "Body by Science" and "Slowburn". They don't publicize the pain part very much.
Note 2: The everyday light workout idea is based on the Crossfit Warmup