[charlieluce]

The Advanced Player's Guide is its own package.
The Dirty Tactics Toolbox is in Player Companion Bundle #3.
The Antihero's Handbook is in Player Companion Bundle #4.
Chronicle of Legends is also in Player Companion Bundle #4.

EDIT: I should explain how I figured out the Player Companions for those interested. I searched the HL - Pathfinder subforum posts using the book title to find the original announcement of which Player Companion package it was in for HLC. Having that made it relatively easy to check which bundle had it in the new store.