help with HID kit

i got an hid kit off of ebay and I have tried every possible way to hook it up. I hooked it up wrong and had to change headlight fuses, I changed them. Tried hooking it up againwith new fuses and it still didn't work. The kit I have is a VVME 9007-HB5 series HID kit. I have a relay for it also. I could have blown the fuse in the relay, I never replacede that onebut if that isn't the problem, any ideas of what it could be.