Before exporting from Poser.(as for your Alysons head)

Import your figure.
Remove all IK, ( normaly right and left leg)
Goto Joint editor => Zero figure

Check:
select the body, it should be at x tran  0n ytran 0 and z tran 0

select the hip and check x at 0 y at 0 and z at 0
this is the "neutral" pose

Now go to export obj.
And select only the group you want to work on. the head.  minus the eyes and so on.

PS, I use anim8or, a free 3d program, and it works great.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!