Sounds like the urls you're referencing for your images are incorrect. The easiest way to get it correct is to create an images folder in the same folder as your index.html file. Then put all the images in there. Now, in your index.html, anytime you want to reference an image, just set the src to something like <img src="images/imageName.jpg" />. When the browser sees a "relative" source like this, it knows that the image you're looking for is in a folder inside your current location. The other option is to statically reference all of your images... you could put a folder called "images" in the web-root of your website and now anytime you want to reference an image on your website, just use <img src="/images/imageName.jpg" />.
Here's a helpful reference.
