We've just released an WRF Domain Wizard 1.23, with improved support for WRF/WPS version 3, as well as numerous small bug fixes.
WRF Domain Wizard is included in WRF Portal here:
http://wrfportal.org/WRFPortal.html
Or you can run WRF Domain Wizard as a standalone application here:
http://wrfportal.org/DomainWizard.html
Best regards,
Jeff