I am not losing! Any advice?

That's some healthy food you've got going on there. How is your balance between carbs, fat, and protein?

Go back through the setup wizard and set it up for a half-pound a week of weight loss. If you're 5 pounds from goal, that's probably about as fast as you're going to get with healthy weight loss. How many calories are you SUPPOSED to be eating, according to the site? And are you eating back your exercise calories?

However, if you're feeling really good and can support all of your workouts without fatigue, then simply lower your calories a bit (250-500 a day which will give you a half-pound to a pound a week), just watch for fatigue, make sure you are getting the nutrients you need to support your lifting.

But if you've got strength training going on - how serious? Dumbell and core work, or heavier "work-to-fatigue" stuff? If you are doing any significant amount of strength, you're ripping and building muscle, which means you are probably retaining some fluids for the muscles to heal up and strengthen and you're adding lean muscle mass, probably at about the rate you're burning off fat. The good news is that your body fat percentage, which is the important measurement (weight is just basically a convenient-to-measure substitute), is going down, and you're going to look AWESOME and have more muscle to burn calories long-term.

The bad news is that the scale may not change anytime soon.

Oversimplification: Cardio is the way to faster weight loss and better endurance, strength is the way to lower bodyfat and better calorie-burning capacity.

My suggestion is to eat more - I know it sounds backwards, but it is important. Your body needs food to fuel especially if you are doing alot of exericising. If you aren't doing it, start eating back your workout calories - give your body a few weeks to adjust to it. It won't happen over night, usually take 3 to 4 weeks to adjust to the new calories. Also, make sure you are getting enough water.

My suggestion is to eat more - I know it sounds backwards, but it is important. Your body needs food to fuel especially if you are doing alot of exericising. If you aren't doing it, start eating back your workout calories - give your body a few weeks to adjust to it. It won't happen over night, usually take 3 to 4 weeks to adjust to the new calories. Also, make sure you are getting enough water.

This....and make sure you drink enough water. For years I was working out too hard and eating about 1200 calories a day and couldn't lose a single pound. I upped my calories and actually decreased my working out and starting losing. Good luck!!!!

Give it time. Your metabolism definitely slows down for a while after quitting smoking.

eat at your brm or at least 90% of it, eat back 2/3 of your exercise calories back and drink plenty of water
cut out artifical sugar and white carbs

I'd say you need to eat more.

on your eating habits. You're eating the right foods and taking in the right amt of calories to lose that 5 lbs, but there are so many other factors involved. To find these factors you need to understand how your body loses weight. There are questionairres out there that can help you decide. If you don't have any thyroid issues going on that is keeping you from losing the weight, check your other hormones. Lower estrogen levels and other glands can produce weight causing things or keep you at a plateau. (such as your cortisol levels when you stress) As you get older, these hormones imbalance and make it virtually impossible to lose those five pounds.
Also, you want to make sure that you are not exhausting yourself and then not replenishing your body with proteins and electrolytes within 30 min of exercise. This can also cause a negative result on your weight. Drinking plenty of fluids is a must to weight loss as well because it is a key factor of digestion. In addition, you mentioned you used to be a couch potato before you started exercising. Two things about this. first, you need to remember that you have shocked your body into a new lifestyle and it may take some time to level out and operate at the level you have shot up to. Second, your digestive system has to adjust to all new foods now and that takes at least a month.
If you have not yet done a cleansing detox for your body, you will need to do that for sure. Your pipes have been gummed up for years and now that your eating healthy and exercising, your bowels need to get rid of the sludge that has accumulated in order to get that food moving quickly through the track. This will also help you to absorb the minerals and vitamins your body is taking in. To jumpstart your weight loss, do a safe cleanse program and lay off the vitamins and heavy foods for at least a week so your body can detox without added stress. Whatever cleansing program you use needs to be all natural without starving yourself and should also include a colon cleansing. TAKE PROBIOTICS in conjunction with your colon cleanse so the good bacteria is replaced. During this time, take a break from heavy exercise and just relax and let your body do its thing. Once your cleanse is complete, you will notice a huge difference in your exercising and how you feel.
Now, take an inventory of the way you are eating. Calorie counting is good, but did you know that having an allergy to a food can actually cause you to gain weight? I had an allergy to dairy products for years before i found out by a blood test that my body was rebelling everytime i hit the chocolate milk and ice cream. Also, please remember that the combination of food and the timing of your eating can have a detrimental affect on weight loss. For instance, eating whole wheat bread is good, and eating a lean peice of meat is good. but did you know that eating them together actually is BAD? Try to eat carbs with veggies and your lean meats with fruits and veggies, but stay away from mixing carbs with meat. If your eating 30 min before you hit the sack, it doesn't matter if it's grapes or a bowl of cereal, you are not going to lose the weight. Always eat at least 2 hours before bedtime and try to take a light walk after you eat. if you get hungry before bed...DRINK liquid like unsweet tea or some milk to coat your stomach. It is also important to stay away from carbs especially refined carbs and fat in the evening. For dinner, stick to meat and sauteed veggies or fruits, that way when your metabolism is at it's lowest, you have the upper hand in the digestion and fat burning game. Eat your carbs in the morning to get you going:)
Hope this helps you. I have tried to give every scenario i can think of. ONE MORE THING...remember that muscle weighs more than fat!!! the scale is not always the best indicator of weight loss. Take some measurements to get a base line and you will see the difference.

what does it mean to eat your exercise calories

It means your MFP food intake goal increases by the calories you log as exercise, ie you eat back the calories you spent on exercise as extra food.

eat at your brm or at least 90% of it, eat back 2/3 of your exercise calories back and drink plenty of water
cut out artifical sugar and white carbs

with the amount she has to lose I would suggest her net intake be at or above BMR and no reason to cut out white carbs if they fit into your daily macros and lifestyle. There are healthier alternatives, but this is not necessary to lose weight or be healthy.