Sorry that didnt help much.
Not sure what a lespaul de is but i think your bare wire is a ground wire which you should solder to the back of the volume pot and the red wire you should solder to the switch.
Again just my guess, but assuming your switch is like a 5 way but with only 3 notches, I think you can solder one red wire to the bridge lug and solder the other red wire to the neck lug.
Solder an additional wire from both bridge and neck lug to the middle lug,
and another wire from the middle lug of the switch to the left lug of the tone pot (to make it similar to the SD 2 humbucker 1 vol 1 tone 3 way diagram).
Back to the switch. The common lug that connects to all 3 positions, solder that to the back of the volume pot.
Quite hard to imagine with just words and it could be totally off but try it if you can decipher it. If not, just pay beez a visit and pay him to do it. Heard he'll teach you if you want him to as well.