In the book The Five People You Meet in Heaven, what is the theme? Also, against whom or what does Eddie struggle? What conflicts does he face?

Answer 1

I went on the 2nd site you provided and I found the publisher listed as this:
Publisher------Little, Brown & Time Warner Paperbacks
On my copy it says "Hyperion". What's going on?

Answer 2

I couldn't confirm this, but Little, Brown was probably the first publisher. Then Hyperion bought the Albom book and put out a cheaper edition of it.