Material Pass Alpha Blend Problem in new version of oFusion

I want create a plane object in 3dsmax and apply a Ogre material.
But when I use a png file(some thing is transparency) on the Ogre texture , I can't set it transparency any way. How to do it? Thanks!!

Set your pass material blend options to:

Src_Alpha
Inv_Src_Alpha

Thank you . It works!