The vang is easy to set up. Take it off the boat and leave it off !
Have you been through the photo albums? There are two collections of rigging photos there, although I admit there's not a lot on jib rigging. Worth a look anyway though:
http://www.flickaway.com/vmca/rigging http://s51.photobucket.com/albums/f392/vmca/MosquitoRigging/ There will also be a pre-season warmup weekend at Latrobe Valley YC (Hazelwood Pondage) on 5-6 September. That would be the best way to get your boat set up. Come along and have a look at the other boats and get some help.
Without seeing the equipment that was supplied with your boat it will be a bit difficult to say how it should be rigged. They do vary a bit.