Adobe products are designed and priced for the professional market. Not the home user.
Photoshop/Dreamweaver are priced for people who will use them every day, not somebody who wants to design a simple website, or edit a image every once in a while.
There are other software packages in the $50 or less price range that should be able to do what you want. They might not be as powerful as the Adobe products, but should work for you and are a lot more affordable.