Your web pages contain html tags for images, the <img> tag. This is one (I got it by right-click, view source), "
<img align="middle" border="0" height="135" src="
http://i191.photobucket.com/albums/z308/sicko1943/webpage/con pics/GenCon 2004/TanyaRoberts04.jpg" width="125" />". The src attribute gives the url for the actual image. In this case it points at a url on photobucket. You will have to use whatever editor you use to change these src tags to a publicly-available url at your picture host of choice. Or you may be able to upload the files to sites.google.com (often in an "images" directory) and reference the image from the website.
You do not state what you used to edit the html pages. Depending on the product it may hide the technical details and allow you to just paste in a URL. At worst you can edit the files using notepad. Change the url inside the quoted string of the src attribute.
JR