How to display different image on hover and content in pop-up?
The Beautytips module provides ballon-help style tooltips for any page element and you can also use it in views.

Currently i am using this module with views to display the text(for field) in bottom of my page , when mouse hover of image. For more information check this video


  It provides an API for adding custom beautytips as well as some
  built-in features. Admins can enable rollover balloon-help style
  tooltips for text fields within forms. It also supplies hover tips for
  Drupal help links and advanced help links.