What do you mean by they don't show? .fhp files are for finished presets that only the creator of the preset can use. If you are looking for presets you can use you can either look for "public" presets or have someone make one for you or just make one.
They should show in the game under the name saying "Use Preset" but even though I've transferred them into the file it doesn't show up as a list.
And these are public, they are created by a Moderator for us to use.
Oh dear, these presets make by Kiki were made by her for her characters. You can only download them so that when SHE wears the presets, you can see them. When you download a preset and all it gives you is a .fhp file, it means it's not for you to use on your character, just so you can see the preset owner wearing it on their character in-game.