First American Edtion ??? Different covers/jackets ???

[Emeline Moore]

I posted a message earlier in the day then deleted it, researched my 
own questions a bit and now I'm back with questions.

I picked up hard cover copies of SS, CS and POA today (at Wal*Mart) 
because they were different then my copies I bought back in Sept. 
2002 (at Meijer and Sam's Club).  I was actually in the isle to buy 
OOP cassette tapes.

The number lines are as follows:

Sorcerer's Stone 1 3 5 7 9 10 8 6 4 2      8 9/9 0/0 01 02
Chamber of Secrets 10 9 8 7 6 5 4 3 2 1     9/9 0/0 1 2 3 4
Prisoner of Azkaban 10 9 8 7 6 5 4 3    9/9 0/0 1 2 3 4

If I'm correct, SS and CS are first edtion but POA is third?

The differences in the dust jackets are what first caught my eye. 
They didn't have the usual raised metallic lettering of my newer 
books. The color is muted and the Prisoner of Azkaban, has an 
altogether different type of paper - it's smooth, and thinner. And 
if I look on the back over the small bar code there are no numbers 
on any of the copies I picked up today.

The actual covers of the books are different too they are smooth and 
black, instead of being cloth on the spine it's the same paperish 
covering. There are no diamond cuts either.

SS has gold writting on the spine and states "J.K. Rowling" as the 
author. It also has no Year 1 marking, the dust jacket to this 
edition states "Rowling" and does have the Year 1 marking.

CS book has silver writting and says "Rowling" and does not have 
Year 2 marking while jacket has Year 2 marking.

POA book spine has gold writting and sports "Rowling" with a Year 3 
marking matching the dust jacket.

I was just wondering if I had some kind of odd ball books on my 
hands. Or if they're no different then anyone elses on the list.

Emeline, who now has 3 copies of the first 3 books, and no longer 
has the money for OOP cassette tapes.