All item packs should have an items.cfg file located within them among the item files. If ye've placed all the correspondin' files of the pack(s) ye've downloaded into the right location, there's no doubt in my mind that the items.cfg file may have been misplaced into the followin' folder: Local Disk (C:) > FeralHeart > Media > Items
I suggest ye' look there. Look for a file named "items.cfg" then move the file to the followin' folder: Local Disk (C:) > FeralHeart
Overwrite any duplicates ye' may encounter then when ye' re-launch the game, ye' should have the items ye' seek.
Aye, the items.cfg file is located in your main feral heart folder. Copy and paste the items.cfg file that came with your download and overwrite the main one. Then paste all of the item textures in the "Items" folder, everything but the items.cfg goes there. Re-run feral heart and you should have items ^^ If not, shoot me a PM and I will be sure to assist you further <3
~ Whisper