I just used breast pads and the lansinoh (sp?) cream, it seemed to help a lot. I didn't have a whole lot of soreness though. But my Mom mentioned if the soreness gets bad that you can use moist tea bags or cabbage leaves, just put them up against your nipples and secure them with your bra (of course use a breastpad with the tea bags so you don't stain your shirt/bra)
breast pads, nipple cream, and those little plastic nipple sheilds seem to be the solutions