problems with matte materal

[stevesideas]

Can anyone tell me what Im doing wrong.

I have the video tracked. I have my object in 3d standing on a material wrapper material. The wrapper has -1 alpha contribution, Matte surface - on, shadows - on, affect alpha - on and vray standard material in the base material.

The only time I can just have shadows if I turn off recieve GI, then obviously the shadows are too dark.

I have a single vray plane light and im using IRR/BF..