Generally speaking, all Ren'Py games that have patches (taboo patches or walkthrough mods) are almost always pasted in the 'game' folder unless otherwise specified by the modder. Though another thing to ensure is that sometimes the dialogue won't match or the mod (especially walkthoughs) have a habit of breaking the game and giving exception errors, so make sure to read the forum you got the mod from, we have selfless "poison-testers" who will update it with the bugs and crashes and hopefully help the modder to tweak the code for the next update.