Hi again!
I have just finished uploading the new tutorial based on "Effects". It emphasises on how to use those confusing "fx_runner" entities that never did seem to work in single player, but they actually do!

Anyhow, the updated list of tutorials is as follows:

Understanding
=============
JKRadiant Environment
Brushes
Textures
Entities

Doing
=====
Compiling & Packing Maps (PK3)
Skyboxes
Rain
Deforming Brushes (Hills)
Invisible Walls
Coloured Lights
Joining Rooms
Force Fields
Music
Water
Fog
Doors
Effects

To visit JK2 Mapping, go to:

http://www.geocities.com/jk2mapping/

Kayron James Mercieca - JK2 Mapping