 Put the MP Peds folder in either your modloader folder or your update folder, depending on if you use IVTweaker or FusionFix to load mods.

 If using FusionFix:
 Put the common and MP Peds folders in your update folder
 Add this line:

 IDE common:/DATA/newpeds.ide

 To the bottom of your gta.dat file

 If using IVTweaker:
 Put the MP Peds folder in your modloader folder
 Dump the content in the "for ivtweaker" folder into that MP Peds folder, except for pedgrp.
 That goes into "test ivonly", or any other folder configured to be loaded by IV only. Read the other readme to see how to make it work with the DLC episodes.
