A lot of cardio and no results :(

You may not be eating enough and you are putting your body in starvation mode. Make sure you drink plenty of water.

My scale isn't changing either. How many calories are you getting? MFP put me on 1340 a day, but I always eat more because of exercise.

Do not go below 1200 calories NET. On your homepage, at the top, it says "NET" and that number should be 1200 or higher. So if you're working out, you need to eat enough back that you rnet says 1200. Also... quality of calories makes a big difference. Eating 1200 calories worth of donuts & big macs is not going to make your body want to lose weight. However, 1200 calories of lean protein (think turkey, white meat chicken, fish), veggies (think green - broccoli, spinach, kale, green beans) and healthy fats (nuts, seeds - not sweetened or salted, extra virgin olive oil, NATURAL peanut butter) and healthy carbs (whole oats, whole wheat, brown rice, sweet potatoes, corn, peas, etc.)

There are several potential things that could be stalling you out on the scale -

1) Make sure you're eating enough - if your body is in starvation mode then it's going to hoard your calories instead of burning them.
2) Do you get sore after your workouts? If so, your muscles are busy repairing themselves, and when they do that they retain water.
3) You're also probably building muscle, which weighs more than fat.
4) Make sure you're drinking plenty of water, especially with the bikram (heated room) workouts. Water retention is an easy way to artificially gain weight.

Some other things you might consider doing, apart from drinking water and eating enough:
1) Measure yourself in inches - you may be losing inches instead of weight right now, but as long as you're creating a calorie deficit then the weight WILL come off eventually. Don't forget - just because the scale isn't moving doesn't mean you aren't getting smaller!
2) Measure your workout progress in terms of how long it takes to get back to your basal heart rate, or how much farther you can run, or how much more you can lift. You're still making progress when you work out - try not to let the scale be your bottom line!

Cardio is great to help lose weight but you have to remember that 80% of losing weight is diet. So eating all the right foods in moderation is what will help you lose.

As stated above make sure you are eating enough! If you are only eating 1000 calories, and working off 400 calories, then your only have 600 calories left over, which would probably put you in starvation mode.

As stated, without being able to see your diary it is impossible to really help. Often the is eating more calories than you think you are. If you are not measuring your portions carefully and just estimating portion size you may be estimating incorrectly. Use a scale and other measuring devices. Also any prepackaged food make sure on the serving size. Sometimes a container that you would think would be one serving is really more than one. Lastly, make sure you log everything. I remember a person struggling with the same sort of problem, but they were not including the hard candies they would suck on through the day. Those sort of "small" things can really add up the calories quickly.

My other suggestion would be add strength training to your exercise. Cardio is at best only part of what you need to do.

Based on your diary you may need to eat more based on how much exercise you are doing. MFP assumes you will eat the calories you burn though exercise. Eventually doing what you are doing you will lose weight, but it will not be a good loss. You need to fuel your body and 1200 calories minus the calories you burn is simply not enough. Here is an excellent post by a friend of mine here about that very thing http://www.myfitnesspal.com/topics/show/196502-for-the-people-who-work-out-like-crazy-and-are-not-losing

I took a peek at your diary. Here are a few suggestions:

1. Log everything. The good, the bad and the really ugly. That is the only way to really see what is going in each day. It is really eye-opening to see everything once it is laid out in front of you. Add everything like butter, oil, seasoning, etc. These little things will all add up at the end of the day. After logging for a full week, go back and take a look at how you did overall for that week.

2. Go to your Settings and then Diary Settings. Add Sodium and Sugar to your list of Nutrients Tracked. You may not know how much sodium you are actually having each day. I watch that number like a hawk because it bloats me up every single time I go over. My Sugar level is always high because I eat a lot of fruit. MFP doesn't differentiate between simple and complex sugars. Natural sugars are okay but should still be kept to a minimum. I just broke through a plateau by cutting back on some of the fruit and adding more vegetables to my day. Worked like a charm and now here I am at my goal!

3. Add fruits and vegetables. From what you have logged so far, I am not seeing any. These will help keep you regular as well. All the protein may be having a hard time breaking down and getting digested. If you are not having a regular BM once or twice a day, your digestive system needs a little help.

4. Don't skip meals. Have 3 meals and 3 snacks each day. Some people like to break their day in to 6 smaller meals. This will help keep you full to make smart food choices and it will keep your body fueled up for any activity you have going on.

Good luck!