I present you Exhibit A.
If you look at the folds of her blouse... umm, I said blouse... if you could... BLOUSE, GUYS!
You'll notice the folds are exact match (save for fact that the SC image is sligthly streched). There's no doubt that picture has at least been the model for SC poster.
However I can't say 100% certainly that this is actually Pamela. The picture says so and so did the site I... happened to accidentally come by the photo. And if you're old enough to remember (or at least old enough read right source material), you'll know that that's at least very close to what she looked like some 20 years ago.
I rest my case.