Help trying to get Custom Story to work!

[Ge15t]

Ok, an update.. I set a dev environment, and when I start amnesia that way after following all instructions, it says FATAL ERROR: Could not load world file : 'blah blah'

This is from the HPL file in my documents:
User Initialization
--------------------------------------------------------
Setting profile: 'dev_user' Path: 'C:\Users\Ge15t\Documents/Amnesia/Main/dev_user/'
ERROR: Script file karl/ourflat.hps does not exist!
ERROR: World 'karl/ourflat.map' doesn't exist
FATAL ERROR: Could not load world file 'karl/ourflat.map'

Does not exist? Im pretty sure it does. Both of them do. Can anyone shed some light on this?