don't know how to upload a game

hi!! so I'm new to this, and I was looking through the psp vault and noticed I have a game which I don't think is up. it's called Kamigami no Asobi - ludere deorum. I have the iso file. it's not listed on the missing games list either? I also doubt it was one of the games which was taken down in the massive deletion of files in June, because it's far from famous and the publishing company isn't even its own company any more I don't think. how can I upload it? thanks for the help!!