how do you make sites where the layout is one big image? i know you image map the links but how do you add text areas and such?

You can create tables, div layers, or i-frames. You can find the codes in Lissa's Tutorials.

i know. but i cant find anything about iframes or useing one big image as the layout and stuff

Professional sites take time, and pratice. You can't just come along and build a super wicked site without any knowledge of what you're doing, it takes time. But, try photoshopping a big logo with the menu bars and use this code:

#block {
position: absolute;
top: 0px;
left: 40px;
right: 40px;
width: 100%;
}