''Mary Star of the Sea,'' the debut album by Smashing Pumpkinhead Billy Corgan's new band, Zwan, has been riding waves of positive buzz, but it still couldn't outsell Norah Jones' year-old ''Come Away With Me'' or Dixie Chicks' five-month-old ''Home.'' The Chicks regained the top spot on the Billboard album chart they had held last fall, shifting another 103,000 units, according to SoundScan. They ended Jones' three-week reign at No. 1, pushing her into second place with sales of 100,000. Zwan entered the chart at No. 3 and sold upwards of 90,000 copies of ''Mary.'' Avril Lavigne's ''Let Go'' dipped one place to No. 4 and moved another 80,000 discs. Holding on to No. 5 was Jennifer Lopez's ''This Is Me...Then,'' with sales of 79,000.
Dropping four spots to sixth place was the ''Chicago'' soundtrack. Kid Rock's newly revived ''Cocky'' held at No. 7 for a second week; it's now sold 2.4 million copies since its release back in the fall of 2001. Super Bowl XXXVII centerpiece Shania Twain saw a post-game bounce of four notches, with ''Up!'' rising to No. 8. Missy Elliott's ''Under Construction'' slid one slot to ninth place, and the ''8 Mile'' soundtrack fell four places to No. 10. Next week, watch for 50 Cent's ''Get Rich or Die Tryin''' to debut on top, even though it'll have a shortened sales week – he's releasing it Thursday, five days ahead of schedule, in order to blunt the efforts of bootleggers.