The only way for me not to have cravings is for me not to eat any cooked food for a long time. If I eat a little drop then that sets the physical cravings off terribly, whereas if I'm 100% raw I don't crave cooked food at all. It doesn't look like food, it looks like plastic. I don't want to eat it any more than I want to eat cardboard.
I suggest you read the book 12 Steps to Raw Food by Victoria Boutenko, where she says exactly the same thing. She says 2 months is the magical timeframe. After 2 months you don't crave any more. I don't think it was that long for me.
However she advocates dehydrated food, and dehydrated food has the same affect on me as cooked food - it makes me feel like I've got a hole in my head instead of a face, and makes me crave cooked food extremely.
I don't think there's any other way to stop cravings - unless you're 100% raw you're always going to crave cooked food.
But I suspect cravings woud be worse the more junky the food is (anyone noticed this?) so perhaps you could try stick to healthy munch food.
Some people say energy soup stops cravings for all nasty things (cigerettes, alcohol, junk food) - this is 6 cups of sprouted sunflower greens, 1 avocado, and 1 apple blended together. It's the greens in it - consuming lots of greens of all kinds, stops cravings, because they balance your body. If you can't manage to eat energy soup (it doesn't taste nice) try green smoothies - leafy greens such as spinach, kale, weeds, blended with fruit and 1 cup water. Greens and blends aren't allowed on Wai's diet but they could be your munch food. Also wheatgrass juice.
The thing that helped me most was the mindshift when I stopped thinking of cooked food as food - eating that slice of pizza is like eating a slice of carboard. Carboard is natural, it's made from a tree, a tree is a plant, so why not eat it? Do you really want to put cardboard in your body? Do you really want to put pizza in your body?