In large bowl, beat eggs and sugar until fluffy; stir in fruit, flour, baking soda, salt, and vanilla. Mix well.
Spread in greased 9-inch square pan. Sprinkle with coconut and walnuts. Bake at 350° until done, 30-35 minutes. While cake is baking, prepare glaze.
GLAZE: In saucepan, combine sugar, margarine, evaporated milk and vanilla. Over medium heat, bring to a boil and boil 2 minutes, stirring constantly. Remove from heat and add walnuts. Drizzle over hot cake.