Are you sure you've placed all the files correctly?
For Items, place the files as:
FeralHeart>Media>Items
For Presets, if you want to see others' presets, place the files as:
FeralHeart>Presets
Though, if you want others to see your preset, you need to export it by going to the main Log-In screen, click Tools, then Preset Maker, choose which preset you'd like to display, then Export it when you're done. Then you need to upload the exported file to Mediafire so others can download your file and be able to see you.
Keep in mind that you also have to replace any duplicates as well as make sure to replace your items.cfg file in the main FeralHeart directory. Then all you'll need to do is completely exit out of the game and relaunch it. It all should work for you then.
I'm horrible with directions though I hope this helps.