hey everybody
i searched whole 3dgs websites, everybody simply says: use TGA, use TGA 32 bit or add new aplha layer

i did that all, but nothing helps, TGA images just gets yellow or inverted, but not transparent.
This is my tree model with simple BMP and opacity flag, pff the tree itself is "cut" in peaces, but there is no black color there! and leaves are black greened
*this is the best result i could get, cuz as i said TGA doesnt work
i have 3dgs a6 and my videocard is ati x600

here's an image: