Here is how to Load GP
Select Genesis 8 Female (or G8.1F)
Load Golden Palace
Load Golden Palace Shell (Shell covers the coloration of the Labia and Anus areas which most torso/body textures doesn't have)
With G8F selected Run Material Copy Script (This copies G8F torso texture and applies it to GP, if you have G8.1 there is a separate script to copy the body texture and apply it)
(If using G8.1 F all the required files are under folder 9-Genesis8_1)
That should do it, Now if you want to change the shell materials there is a Colorize Gen script, or if you want more color options there is Pussy Wizard which adds an additional shell for the labia majora coloration, along with a bunch of options for the minora (Default Shell)
Also if using G8.1F the MAT Copy script can be a bit squirly at times, it doesn't always automagically copy/match the shader base to the new PBRSkin shader if used, so sometimes you have to manually apply the PBRSkin shader, to do this select Golden Palace in the scene tab, go to surfaces tab, look at the top where it says Shader: if you know you are using a figure with PBRSkin and it is listed as Iray Uber then you'll need to apply the PBRSkin shader for it to match the GP Surfaces to the G8.1 surfaces.