It is the same ship, just at different angles.
Question: How do I extract and import a retail ship from POF into Sketch-Up? I know I've seen pictures by Blowfish using retail ships for comparison and would like to do the same so I can get a feel for the scale.
Well, there are a few methods. Many of those I just downloaded from
this site. If you don't mind breaking textures, you can just export to 3ds using LithUnwrap. If you want textures, I usually use AccuTrans 3D (look it up) to convert from COB to 3DS. Note that for SU to import the textures correctly, they must be in the same folder as the 3ds as BMP, with the exact names that are in the 3ds file (they can change a little during conversion). Though SketchUp will almost certainly fail to texture at least a few faces (limitations of the importer AFAIK.
Also note that BSG universe ships (since that seems to be what you are going for) are typically much smaller than FS ships. For instance, an Orion is 2100m long vs Galactica being ~1400m.