That is a tough one to help out over the net. Each motherboard is layed out alittle different from what I have seen.
The good thing is that most of the wires are not truely needed to get it running.
Power to motherboard, drive cables, fans, power button, and you are running.
Just go slowly, take one set of wires at a time. (I know my box front connectors are still not hooked up, three years now, so short two usb ports, and sound on the front of my machine)