Triggered Explosions Help

[FuzeTek]

Hey ^_^

Ok what I'm trying to do is have a room, and when a player enters a trigger the wall explodes to reveal a hole that a creature comes through. Now I can make the trigger and the script, it all works....Player enters, good wall parts are disabled, broken wall parts and creature are enabled. However, the explosion objects in the Geck are not placeable to enable when the trigger is used and the sound emitter of the explosion I place repeats itsself when its enabled even though the emitter itself isnt set to loop. How do I make the explosion effect appear at the Hole in the wall? and does anybody know the script to make item use a certain playgroup? Like the klaxxon light, it dosnt animate normally.

Any help would be greatly appreciated.