56K: Maybe you used 'weapon' for the point, instead of left hand, right hand. Thats why it attaches to the weapon. However, it will look funny with a mallot and a sword merged together anyway.
Blood: No, the original weapon is part of the units actual 3D model. So you can't remove it easily.
Blood: You can make your own attachments with a 3D modelling program, such as GMAX or 3DSMAX.