Use a voltmeter or continuity tester to verify each strand before you solder them on the dock connector and write the wire colors down just in case.
Shorten the wires to a length you feel comfortable with while remembering that you have to cram them inside the case when you are done.
Strip each wire about 2mm and twist the ends. The ground(negative) and positive wires can be grouped together but the data wires must be kept separated.
Solder them on and plug the dock connector in.
Connect the ide cable. Needle nose pliers, forceps or hemostats are a good idea if you have freakishly large hands like me.
If your folds are crisp the cable should snug right into place when you set the board into the back of the case.
When tightening the long screws that hold the motherboard in place you should tighten them only until you see the board dip. Too tight and you will get a BIG ugly spot on the screen. As it is you probably will get a little ugly spot from the ide cable and usb wires.
Play around with it, move the wires, shave a few microns more off off the ide cable. You'll get it so that the spot is almost not noticeable.
The outside screws can be tightened all the way except for the one under the internal battery. Too tight on that one and the hardware buttons will be pressed all the time. Best to leave it out or just a little snug.
Good luck everybody.