i take it there's no 'oooh, it's technology and not really ghosts' stories allowed?
I think you're correct. He did say the story must involve the 'paranormal/supernatural in some way.' That would seem to exclude any sort of scientific or technological explanation for the ghosts involved.
That I (she) did! I also woke up this morning and thought... Hmm... you know I should allow "apparently paranormal" stories too - mainly because I haven't a clue how to write an actual ghost story but Orion smugglers using the legend of the Star Trek fairies to keep people away, that I can write.
So - rule change:
I want paranormal / supernatural or apparently paranormal / supernatural stories.
Keep it scary though!
I'll amend the first post it it'll let me.