If you have sections of pages not loading, it may be because you do not have all the plug-ins you need. Return to the main page and go to the "Get Ready" page to download the plug-ins. If you do not want to download the Flash Player or want to save time, click on the "non-flash version" to see the same thing as simple Web pages.
If you have a slow modem connection, it may take some time to load the images. Most of the images are just for fun, so you don't need to see them. Others provide important information, like a screen you might encounter and need to use.