Heat oven to 325 degrees F. Place ham on rack in shallow roasting pan. Bake, uncovered, for 1 1/4 hours, until internal temperature is 140 degrees F. (about 15 minutes per pound.)
In small saucepan, combine half of the juice concentrate, 3 TBS maple syrup, 3 TBS vinegar and thyme. Bring to a boil, reduce to low and simmer uncovered for 5-10 minutes or until slightly thickened, stirring occasionally. Baste ham with glaze the last 15-20 minutes of baking. Remove ham from oven, slice and serve with Pineapple-Raisin Sauce.
Pineapple-Raisin Sauce:
In a medium saucepan, saute onion in butter until tender. Add remaining juice concentrate, water, raisins, maple syrup and mustard. Stir together 1/4 cup vinegar and cornstarch; stir into raisin mixture. Cook and stir until thickened and bubbly. Cook and stir for 2 minutes more.
