I'm thinking that most have owned the album already, so download is kinda the same, so the chance for them to go up is with the airplay, just my two cents.
yeah i didn't even think about that, you are more than likely right.
Congrats to Ciara for finding another smash hit. She's had some problems finding some hits after "Goodies" and "1, 2 Step". I hope to see this song dominating some charts soon.