If there were no problems with retailers having Kellie's cd in stock, I would estimate sales of around 7000 to 8000. However as we all know, that's not gonna be the case. So with that I'll say around 5000 to 6000.
The Wal-mart nearest to me here had none in stock as of Tuesday evening.
The nearest Best Buy had 3.
One added note, Kellie had been selling about the same as Blake Lewis before his appearance a couple weeks ago. His sales averaged about 4400 the past two weeks. A modest increase from around 2500, but not too impressive considering he was on in front of about 30 million people and his cd has only been out a few months. On the other hand, Kellie's cd has been out for nearly 17 months, and from the indications were seeing here, she should easily see a bigger spike than Lewis did.