JAW is not a very common format. In fact it was used by a very basic 3d engine for DOS some years ago and i decided to support it, because it's so simple and easy to understand. I once had a small converter for ASC (or 3DS...i don't remember it correctly) to JAW but i guess that it's gone over the years. I suggest that you use ASC instead.
IE and refreshing applets is kind of a problem. Try to reload the page holding down the STRG-key. This helps sometimes but not always. I usually quit IE too to refresh the applet-content.
