Frozen Tiramisu Sundae

Beat cream in large bowl with electric mixer until frothy. Beat in confectioner's sugar until soft peaks form. Transfer whipped cream to a large wire mesh strainer lined with a coffee filter or cheesecloth; set strainer over a bowl. Refrigerate up to several hours; (until ready to assemble or serve). Put cheese into small bowl; beat with electric mixer until light and fluffy. Beat in about 1/2 of the whipped cream until smooth and light. To assemble, divide crumbled ladyfingers among 4 serving dishes. Sprinkle each with 1 Tablespoon of the coffee and 1/2 to 1 tablespoon of the dark rum. Top each with 1/4 of the cheese mixture and 2 scoops of the coffee ice cream. Freeze up to one hour before serving. To serve, spoon remaining whipped cream into a pastry bag fitted with a 1/2 inch star-tip (or just dollop the whipped cream on top with a spoon!). Spoon some chocolate sauce over each serving. Pipe or spoon some whipped cream over all; sprinkle with 1 Tablespoon of the shaved chocolate. Garnish with a chocolate curl and serve immediately. NOTE: Ladyfingers for tiramisu, such as Savoiardi made by Bistefani in Italy, are available at Italian specialty markets, and at some supermarkets. Other ladyfingers or cubed pound cake can be substituted.