The Nebula Class has only 1 name, BOTH for the Sensor Pod version (USS Phoenix), and the Weapons Pod version (USS Farragut). There's no such thing as an Apollo Class.
Just looks a bit odd to me, seeing P81's ships from BC, which were remade (partially) for Legacy's stock ships. And now getting back-ported to BC. If you compare the textures on some of these ships in Legacy, to the textures he made for BC, much of it is damn near identical. Except for the colors looking a bit washed out, and that Legacy supports bump maps.
The Ambassador Class for example, has pretty much the same textures (but washed out), that the BC P81 Ambassador has. Don't take my word for it, just compare the two.