Dividing bones hierarchy

Hi
lately i've been testing how to divide sequence for lower and upper body.
I have two catalogs UPPER and LOWER and one .cfg file in each.

In lower.cfg i have:

"AlwaysExport:

Bip01 L Thigh
Bip01 L Calf
Bip01 L Foot
Bip01 R Thigh
Bip01 R Calf
Bip01 R Foot
Bip01 Pelvis"

in Upper.cfg I have

"AlwaysExport:
Bip01 Spine
Bip01 Spine1
Bip01 Spine2
Bip01 Head
Bip01 L UpperArm
Bip01 L Forearm
Bip01 L Hand
Bip01 R UpperArm
Bip01 R Forearm
Bip01 R Hand
mount0
mount1
eye"

Every other thing is in NEVER EXPORT section!

Now the problem is that when i export sequence without "Bip01 Pelvis" in always Export section in .cfg file
my animation in show is distorted the upper body is rotated 90deg on Y-axis, some polys are stratched??
The question is how to export my upper body without pelvis???
PS1: Pelvis is root bone it is child of Bip01and parent for Spine1 and thighs