Adding NEW ITEM. But not moving with char. [HELP]

Hey guys.
I'm adding a new Chest for EU, H.ARMOR. But when i do this, the item is not moving with char. staying where it is. you can see in pic.:
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And this is full view of item.:
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What am i doing wrong? Look, and this is the pic of model in Blender & Autodesk Maya 2013.:
Blender:
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Autodesk Maya 2013:
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Please, respond me as fast as you can. I want to add these items without any problem. Thank you for everything.

No one has any idea about this in epvp? Shit. -.-

Seriously , Not much ppl are pro in blender . I'm one of them .
but , check .txt , That bug was @ Death assassine avatar (female hat) , because of wrong lines
Dunno really , but maybe it helps you

maybe you should add something to particles.pk2 ?