Are the five finger toe shoes good for runners?

They might do the trick if you're smart about how you use them. The thinking behind them is that they force you to run more naturally, landing on the forefoot or midfoot as opposed to the striking on the heel the way that we tend to do with traditional, heavily-cushioned running shoes. Heel-striking, many believe, places more stress on the knees, shins, hips, etc. Over time, with minimalist shoes your feet will grow stronger and you will have a more natural stride. This may or may not fix the injury problems for you. I know a lot of people for whom they have worked wonders, but others whose injuries were the result of other things -- like over-training -- that the Vibram shoes couldn't help. I would suggest, if you decide to try them, to wear them around the house or for walks down the street at first, then gradually try strides in the grass, and so on. It will take a while to get accustomed to them, and if you try to run in them right away, you may end up hurting yourself anyway.