Black Forest Cheesecake

In a small bowl, combine wafer crumbs and margarine. Press into bottom of a 9-inch springform pan. In a small saucepan, add gelatine to water. Stir over low heat until gelatine is completely dissolved. Add 1/4 c of the gelatine mixture to the cherry pie filling and stir in 2 t of liqueur. Pour cherry mixture over the crust; refrigerate until set, about 30 mins. Meanwhile, whip the whipping cream and set aside. In a large bowl, beat the cream cheese and sugar until light & fluffy; then stir in the sour cream. Add remaining gelatine mixture and remaining liqueur. Fold in whipped cream and spread mixture over cherry base. Refrigerate until set, about 3 - 4 hours or overnight. Remove side of pan and garnish with chocolate curls if desired.