Insert Images in Dreamweaver CS4

• Select and delete the default text that is inserted by Dreamweaver when creating a div ‘Content for id “header” Goes Here’.
• Insert > Image > browse and select the logo image.
• In the screen that appears, enter alternate text describing the image. e.g. BusinessSite Logo. Click OK.
  
• You will see the logo image appearing within the ‘header’ div.
  

We have now completed the header portion of the template.

Source :- tutorialized.com