Reading through the journalist accounts of the research, it seems there is no need to worry about vitamin consumption if you're taking daily multivitamin supplements. This research concerns other vitamins:
The researchers studied 170,000 patients suffering from cancers of the gullet, stomach and intestine, bowel, pancreas and liver and found that consumption of supplements of beta-carotene, Vitamins A, C and E, and selenium, alone or in combination had no protective effect on them.
In fact the risk of death was found to be 30 percent higher in people taking beta-carotene and vitamin A than for those not taking the combination.
I'm not worried about my multivitamin because this seems to be more about overconsumption of vitamins. Many people go way overboard in their attempt to help cure themselves of ailments.