Sprinkle bottom of greased 9 inch spring form pan with cornmeal, set aside.
In mixing bowl, beat cream cheese till smooth. Add taco seasoning, sour cream and salsa. Stir iln eggs, pepper jack cheese and chilies. Fold in olives. Pour over cornmeal. Place pan on baking sheet.
Bake at 350 for 30-35 minutes or till center is almost set. Cool on wire rack for 10 minutes. Carefully run knife around edge of pan to loosen, cool for 1 hour.(top of cheesecake may crack) Refridge overnight.
Remove sides of pan. Spread sour cream over top and sides of cake. Arrange olives, onions, tomato slices and pepper slices on top. Serve with crackers.