> Other than fidling with Wills Voxel Editor, is there any easier ways to make Voxels? if so could you direct me to the programs?

It depends on if you find 3D editing easy or not. Usea 3D program that can export 3DS format to model your vehicle and then use 3DS>VXL for conversion (get it from planetCNC). An even better solution is being developed by flyby that requires GMAX or 3DSMax, but I don't think he's going to release it until he's worked out the RA2 normal system (since the exporter will need to be able to do the normals as well).