Winn-Dixie Stores has found -- as Jefferson Davis did long ago -- that winning Dixie ain't easy. The Deep South supermarket chain operates about 480 combination food and drug stores throughout Alabama, Florida, Georgia, Louisiana, and Mississippi under the Winn-Dixie and Winn-Dixie Marketplace banners. About 380 of Winn-Dixie's supermarkets have pharmacies, about 75 house liquor stores, and...