What do I do next? I now have what the puzzle gave but what do I do with it?
Also how to get the new CG? Says I need an ally, how do I get one?
Deliver it to Uffe, the werewolf leader who gave you the quest. Do note that there are a lot of bugs with that amulet, so don't mess around with the pillars a second time (You can get a second amulet, but you won't be able to finish the quest) nor should you be wearing it when you give it to Uffe (He took it from me and I retained the health debuf, possibly not permanent but I reloaded almost instantly).
Edit: Also make sure you cleared out all the weeds in the cave with the pillars. Uffe won't accept the amulet until you've cleaned the place. You do need to solve the puzzle with the barrels on the bottom left of the cave to access the room on the right to get to the last of the weeds. Also, it may be possible to get a second amulet after finishing the quest, I haven't tested it.
As for the new CG I think that's in version 0.0.17, the Patreon version. I only have 0.0.16, the public version, so I can't help you there. If you're on the public version then there shouldn't be any CG's that require an ally to unlock. Unless I've completely missed something, the last two that are available in the public version are the "Losing to the bandit boss" CG and "Captured by bandits" CG.
Shouldn't have anything to do with meeting Wuldon. The quest can be pretty buggy if you don't solve it your first time through. If you remove all of the weeds, leave and reenter, then remove all the weeds again, you will have just made it impossible to inform Uffe of your success. Same thing if you try for a second amulet.
To be able to complete the quest, the game only makes two checks - one that you have the Moonstone amulet in your inventory and a second check on your quest status. Wuldon has nothing to do with either, so it's unlikely he was the culprit. The quest status, though, is likely the issue. Remember how above I mentioned that doing certain tasks twice can make the quest impossible? Both of those alter your quest status by incrementing its value. However, this isn't reset when you exit the cave and you can repeat the action as many times as you want, further incrementing your quest status. Uffe only checks for a specific value, not a value greater than a specific threshold, making it easy to accidentally break.
There are two updates released at the same time each month. This last one was both v0.0.17 and v0.0.16, one was given to Patreons and one was released to the public.
V0.0.17 is the werewolf orgy. That one is not yet released to the public. This can be confusing as the update information contains the Patreon version info, not the public info. So if you scroll up from this comment you will see the update info for the Patreon version, not the public version. If you do in fact have the Patreon version, I'm afraid I can't help you as I don't have that version.