Im no expert at losing the weight (15 stone plus!) but I do know that there is no such thing as fattening food or dieting food. Alcohol, agreed, thats bad as the calories are useless and get stored as fat. But anything else is ok. The calories in bread, fizzy drinks, chips etc etc. are all the same as those found in salad, but there are more of them.
True some fats are harder to break down than others, and pound for pound fat contains twice as many calories as protein, but ultimatly if you burn all the calories you eat then you can eat anything.
So you put on weight by eating more calories than you burn (this should be measured over a period of months not days) and you can lose weight by burnign more calories than you eat over a long period of time.
If it took 2 years for that stone to creep up on you then it will probably take a year to lose it permanently, anything quicker will not be permanent loss and you are likely to put it back on again.
So, of course you can cut out high calorie foods but its not those foods that make you put on weight, its just the simple fact that more calories in than burned will increase weight, and as mentioned above your metebalism will be slowing down, so you need less calories. But that can be done with less bread and fizzy drinks and alcohol not stoppign those things altogether.
If I am mega busy at work and just eat fish and chips every night and petrol station food then I will lose weight, if I am less busy at work and have time to go shopping and eat sensibly then I will enjoy eating a bit more and put on weight.
I lost a stone one month eating fish and chips and bacon sarnies only, but I mean ONLY, no other snacks cos I was workign too hard. Its the work that burns it off not the healthly lettuce rubbish! Eat whatever you want!!