Dreamweaver Question

Hi,

I had a couple of questions hoping that someone can answer them for me.

1: I made a layout with Photoshop. I want to put some text so i was told to do that with Dreamweaver. But how do you go about writing text on an .png file ? It wont let me.

2: I was also wondering some sites when you click on their “tabs” (i.e. home, contact) Their text area only refreshes instead of refreshing the whole site. How do i go about doing that was well ? Please help me. Thank you.