I can't get my costum stories

[Your Computer]

Well I got gary's dark secrates,Better place,And white night and non of them are working...but i just put them in the custom stories folder

Gary Dark Secrets and White Night are both full conversion mods. Better Place is probably one too, but the only link i can find to it is dead. Either way, full conversion mods don't belong in the custom_stories folder. Read the readme files that come with the stories. It should tell you what to do, or at least provide insight on how to install it.