The tigara and sharlin are in "warships of", and the white star is somewhere in legacies of war.
The Vorlon Dreadnought isn't statted, I'm afraid - you'd just have to build it yourself using traveller rules (the shadow ship is, so you can take the sizes for bio-lattice armour and regenerating fuel, and obviously MCr value is irrelevant).
The clan ship definitely isn't. To be honest, the stats are "run away".