to get round the mem allocation errors, in preferences set your scratch disc to 100meg, then save your scene and close C7, this will clear all memory.

Open C7 and go straight to the render room and use the batch render function, to render your scene, this will not use as much memory as the scene uses up memory while open in the assembly room.

If Daz would just make Carrara 64 bit like all the other 3D apps seem to be most of us wouldn't get this mem errors anyway