Yeah, original Fan Fictions are still called Fan Fictions for some bizarre reason. I wouldn't be worried about it, just post in the Fan Fiction forum. Just make sure when you post you don't post in one of the sub-boards, and also that you put the [Other] prefix in front of the name (don't worry, when you make a thread there will be a box which has three options in it - none, Pokémon and Other - just pick Other).