How to create a Marketing Plan and others?

I have a class project its about a restaurant that we are creating and will eventually open soon. I have choosen to specilize in seafood. This will be a huge resturant about 100 seats. Now, I have to write a statement for each: Vision, Mission, Long-range plan, Business plan, Marketing Plan, and a Operating Budget. The problem is is that I dont know the first thing about a restaurant business which makes it hard for me to figure out what I should wright. What could I possibly say?

thats also my problem! idk how to start that plan… anyway i can provide you diz linked to help you
this is also came from yahoo answer … this will help alot!

http://answers.yahoo.com/question/index;_ylt=AhNBl9Pzc0y8Yx4V7mfmvlwjzKIX;_ylv=3?qid=1005123102078