PHP

To Whom It May Concern, I was HOPING you could point in the right direction of where to seek immediate assistance. I just gained a client who's site was completely built off of Contributor using PHP scripting. When I went and downloaded their site into Dreamweaver some pages dont show text at all. And the images are all done in Fireworks and I am used to photoshop. HOw can I change these so I can see the images and they look like normal .jps to me instead of Firework .jpg. I tried to save them in Photoshop CS2 and then save them for the web and as a .jpg and that doesnt work. It only seems to let me save it in .gif only. Any suggestions. My BIGGEST PROBLEM: Do you happen to know or anyone out there as I AM DESPERATE if there is a way I can easily use PHP in Dreamweaver without having to rebuild the sites into htm or html? I looked up PHP and I am not familiar with it at all - why is it used vs. htm or html? Does anyone know? IF anyone has any recommendations I WOULD VERY MUCH appreciate it! THANK YOU, Claudia