Thaw fish, if frozen. Rinse fish steaks; pat dry with paper towels. In a large skillet combine combine wine, water, sweet pepper, capers, crushed red pepper, and garlic. Bring to boiling; reduce heat. Simmer, uncovered, for 7 minutes, stirring occasionally.
Place fish in a single layer in the liquid in the skillet. Season fish with salt and pepper. Spoon liquid over fish. Return to simmer. Cook, covered, for 8 to 12 minutes or until fish begins to flake when tested with a fork. Remove fish to serving platter. Drain peppers and capers from poaching liquid; discard liquid. Drizzle cooked fish with the oil and serve with pepper mixture. Sprinkle with parsley.