Dissolve both jellos with the boiling water in a large bowl. Gently stir in ginger-ale.
Refrigerate until slightly thickened, about 1 1/2 hours. Stir in grapes amd oranges. Transfer to a five cup mold that has been coated with non stick cooking spray. DO NOT USE A FLAVORED COOKING SPRAY or your mold will taste like that spray. Cover and refrigerate until firm.