I've never heard of a poltergeist corn before. A quick google search makes it seem as though its a corn/grey rat hybrid of some sort; perhaps a ghost (hypo anery).
I'm guessing that the label was what the pairing was, not what the snake actually is. It looks like a snow motley to me. Not a ghost. Though it could be a hypo snow motley if the "poltergeist" also has hypo in it.
In corn snakes, motley and stripe are allelic with motley being "dominant." I use the term dominant loosely as often you'll see "striped motleys" which are motleys that have some striping pattern and are often het strip (eg they have once copy motley and one copy stripe). Though this isn't always the case.
As for her color, she'll most likely not keep the pink. There are some lines of snow corns that are pretty pink, but most hatch really pink like yours that fades to more white over time. Just google snow motleys and you can find a zillion pics of adults.