Help needed - how to setup a level for use with PureLight

I've recently bought Purelight and right now discovering the possibilities. Now I'm having a rather large dungeon level which is in fact 1 large dts (or dae, cause Purelight use Collada) The dungeon is mostly dark but there are some spots where there is light (lamplight or sunlight). Also I have many props (like tables, rubble, beds and more of this stuff) in this level, which are seperately designed and thus seperate dae's and I have placed them in the dungeon using the T3D world-editor.

But now I have Purelight and I want to set this level ip for this. The problem is that when I create the scene and load it into Purelight all meshes are located at 0,0,0. Moving these models in Purelight seems to be a little bit hard so the questions are:

- How do I build my level? Putting all meshes in 1 big model is not an option, because the level is zoned.
- Do I have to export all models with the same origin? If so, how about object-instancing in T3D?
- Does LOD's work in these models?
- After scene-creation with Purelight can I convert the DAE's to DTS using DAE2DTS? I know T3D generates the cached DTS, but I would like to have some control.

I hope someone with more experience with Purelight can put me in the right directions (this is something I am missing in the Purelight manuals), cause levels made with Purelight give very good results.

Thanks.