What's your problem with this part? I checked, it's fully usable... just that it's still in unofficial stage because of slight cosmetic issues. Get them here (don't forget subparts):
http://www.ldraw.org/cgi-bin/ptdetail.cg.../64179.dat
http://www.ldraw.org/cgi-bin/ptdetail.cg.../64178.dat
http://www.ldraw.org/cgi-bin/ptdetail.cg.../64179.dat
http://www.ldraw.org/cgi-bin/ptdetail.cg.../64178.dat