The raw food diet is comprised of a philosophy that believes that the human digetive tract is most suited to eating fruits, vegetables, nuts and herbs. While it may be difficult to make the transition from eating cooked food to these kinds of foods, you don't have to do it all in one go. Try adding raw fruits and vegetables to each of your current meals, and experiment with making hearty salads that consist of cabbage, lettuce, cucumber, zucchini, celery and carrots. Pretty soon you may want to try replacing a cooked food meal with one of these salads. Different nutrients are found in different vegetables, and it may be a while before your tastebuds get used to eating spinach or beans, as these are some of the sources you may need to draw upon for your body's requirement of protein. Some fruits also contain calcium, but until you are sure you are eating enough of them, you might want to try taking supplements in pill form.
This website may be of more help to you in providing more ideas:
http://www.alissacohen.com/faqs.html
You can also find ideas in this blog from someone who is starting out on the raw food diet:
http://rawawareness.blogspot.com