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OpenGL mask blended images

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I am trying to draw some smoke billboards for the tires in my car game. The billboarding system works perfect, as I have verified this by drawing polygons w/o blending. So next up, I wanted to have the billboarded all polygons nicely blended together. I've tried every combination of Opengl's blending:
/* BlendingFactorDest */
#define GL_ZERO                           0
#define GL_ONE                            1
#define GL_SRC_COLOR                      0x0300
#define GL_ONE_MINUS_SRC_COLOR            0x0301
#define GL_SRC_ALPHA                      0x0302
#define GL_ONE_MINUS_SRC_ALPHA            0x0303
#define GL_DST_ALPHA                      0x0304
#define GL_ONE_MINUS_DST_ALPHA            0x0305
but in the end, when the polygons were being drawn, they would cover each other instead of properly blending. I know how to mask polygons, but is there any way to set it up so that I can mask And blend polygons at the same time?

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this is what i use


// draw mask here

// draw image here


if this isnt what you are looking for i could find another way if you could be more specific on how you would like the blending to work

edit: t = alpha

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