Irrlicht Engine

I just converted a skinned mesh from my custom format to ms3d, the bone's orientation are all mirrored, making skinned mesh looks weired.
for eg, this is the right skeleton:

\
\
/
this is i got the mirrored skeleton:
/
/
\

so, how can I mirror them back to right the ones? thank you!

ms3d uses right-handed coord system, while Irrlicht uses left-handed. You have to convert all positions and transformation matrices accordingly. At least this could be a reason here.

That must be the solution.I still got other problem's to solve.