ok,that is some crazy stuff in need to research about that.I'm not into physics,etc...
and if you would move faster than speed of light , distances would be shrinked to negative side, so you would actually move back in time... Its hard to explain shit when englis is my 4 th language... but basically its like that, there is nothing faster than light , no matter how fast you move you will never measure anything moving faster thant light... for example if you fly at half the speed of light and the other ship goes in the other direction at the same speed you would think that you would measure both of you moving away from each other at the speed of light but the fact is the distance shrank too and time is dilated becouse of this... no matter what you do you will never measure anything moving faster than speed of light... the faster you move the more time dilation happens