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?

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?

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.

The theme of the book "The Five People You Meet in Heaven" by Mitch Albom is the interconnectedness of all human lives and the impact that each individual's actions have on the lives of others. It explores the idea that everyone is connected in some way, and that every life has significance and purpose.

In the story, the main character Eddie struggles against both external and internal conflicts. Externally, he faces conflicts with specific individuals throughout his life who have caused him pain or influenced him negatively. These people represent the wounds and unresolved issues from Eddie's past that he must confront and come to terms with. Internally, Eddie struggles with his own feelings of self-worth and regret. He carries a deep sense of guilt over events in his life and believes that he failed to live up to his own expectations.

To get more specific details about the conflicts and struggles Eddie faces in the book, you can read the novel itself. The story unfolds through a series of encounters with five people Eddie meets in heaven, each representing different stages of his life and providing insights into the significance of his actions and their impact on others.