If you can't wait for version 4.4, the version 4.3a of viewer Jar files can be found on sweethome3d.com server:
http://www.sweethome3d.com/lib/SweetHome3DViewer.jar
http://www.sweethome3d.com/lib/Loader3DS1_2u.jar
http://www.sweethome3d.com/lib/batik-sv ... er-1.7.jar
http://www.sweethome3d.com/lib/java3d.jar
http://www.sweethome3d.com/lib/windows/i386/java3d.jar
http://www.sweethome3d.com/lib/windows/x64/java3d.jar
http://www.sweethome3d.com/lib/linux/i386/java3d.jar
http://www.sweethome3d.com/lib/linux/x64/java3d.jar
http://www.sweethome3d.com/lib/macosx/java3d.jar