the jumbo javelin doesn't appear in any of the shipyard downloads.i've downloaded both the superpacks exe and the setup versions of the jumbo javelin, but there seem to be any physical vessel, because when i go to custom missions to play them it says i need vessels which are not in my version of ship sim 2008 which ver of ss2008 do i need as the upgrades will only go upto 1.4.2. my ss2008 ver is upgraded from 1.3.2 to 1.4.2 with ambx.what does this do,the ambx?