[ramonesfreak]

i will let wolfe answer to his wiring diagram/color code but in general heres what i can tell you having installed a humbucker in a gibson sg a few days ago

the shielded gibson wire is ground...and soldered to the pot. unsolder this with a 40 watt iron and use some desoldering ribbon or a solder sucker to remove the old solder. clean the pot with some light sand paper and flux.

the wire soldered to the lug on the pot is a hot wire. desolder this quickly using an aligator clip clipped to the lead of the cap that comes off that lug to act as a heat sink so you dont fry the cap. clean the lug with some sand paper and make sure no old solder plugs up the hole on that lug

2 of your new PU's wires are likely the coil split wires and need to be twisted together and soldered and then covered with shrink tube or electric tape, (if your not wiring up a a coil split toggle or pot) then the negative gets soldered to the pot and the hot gets soldered to the lug on the pot just like the original wires were

you just need to know which are the coil splits and which are the ground and hot wires...maybe his website has a diagram/color code