Make sure you saved the pasted note and saved it in the right place. It should be in FeralHearts main file and in the ''items''
Also.. make sure you put the files in FeralHeart - Media - Items
Good luck floof.
You need to not only put all the pictures on the Media>Texture folder, but also need to put all the codes in for the items in your item .cfg notepad and save them there. The items are unless without those coding in the Feral Heart item .cfg note.
Sometimes item folders are also equipped with "Read me" notepads that also help you and instruct you on directions on how to input them in Feral Heart.