Weird.
I know this sounds strange but... the model isn't really far from the origin point (0,0) is it?
I'm just beginning to wonder if the component fixing points are relative to the position of the room AND the position of the model compared to the origin.
You can check the position by looking at the X/Y when moving the mouse in ModelIT (can't remember if you see in Radiance).
If it is offset then move the model closer to 0,0.
If not then can you upload a CAB archive to somewhere and paste the link in a reply to this post - should be fine as long as you remove any sensitive (if any) details from the project (rename it and then delete any "HSBC Headquarters top secret" type text).
I can have a look tomorrow (sat) if between 10:30- 12:30... Blackburn game @ 3.
Otherwise I'll try to check it out on Sunday night.
Zap.