Look at this: http://ccg.animecafe...=Aurora_Emitter
Check out the part about Size X/Y start and end.
I also noticed that the animations on your model are 'empty'. That's probably because they used a simple 'birthrate x.x' instead of proper birthrate keys. The game can handle it if there's a simple 'birthrate' in the animations instead of birthrate keys, but NWmax ignores it and the animations are broken after exporting the model.
If you edit the model in a text editor before you import it and correct the animations so they use proper birthrate keys (or apha-, position-, selfillum- or orientation keys, whatever the animations use) they will still be okay after exporting the models.
I can tell you how to correct them if I see the original model.
There is also the possibility that two animations were added to the model and never used, in that case they should be removed.