Thanks Jace, tried that already. But the alpha didn't mask out "in game". So I thought it must be a 'material' problem on the 3d model.
_____________
| / If not a material thing, then I thought maybe move some of the
| / vectors.
| \
|__________ \
I'm still happy doing textures at the moment, might come back to this one later (need to start learning 3d
)