You'd need to make a complex image map to accomplish that, where it literally has coordinates of the image that go to different links, OR redo it in photoshop using the slices tool and saving for web, OR use CSS(the best way, if you know it)
I would probably recommend using the slices tool in photoshop (looks like a xacto knife in the tools pallette, 2nd row from top on left i believe), What it does is you make selections on the image of everything you want to be a different image, so you'd select around all the text, then what photoshop does when you "save for web" is cuts the image up into a bunch of different ones, saves an html file that has them all perfectly placed as if they are one image, then just open it up in dreamweaver and make those seperate images links. If you need further clarification just ask
