Help with ck

[jedijas]

Hey guys trying to create my first mod here made a room in ck and then activated it in game when i coc to the room however most of the room has dissapeared when i go back into the creation kit the same happens what's goin on?? please help

 

EDIT: these are the different stages

 

http://jedijas.com/killinghall.jpg this is the room I made in ck

 

http://jedijas.com/problem.bmp this is how it appears in game

 

http://jedijas.com/problem2.jpg this is how it appears afterwards in ck

 

any help appreciated thanks,

Jedijas