To succesfully connect to a site, you must enter the URL precisely. The Web is not forgiving of typos. This first portion of a URL is called the protocol description. The tilde key is usually on the upper left of your keyboard. The last part of the URL is a file or directory name.
Directory names end with a slash and file names end with .htm or .html .
This may allow you to connect to the site, then navigate within the site to the file you want. There are a number of search engines available to help you locate material on the Web. Click on the NetSearch button in the toolbar at the top of the Explorer window, and follow the directions. Typically, this will be as simple as entering a word or phrase, and clicking the engine's Search button. Each engine has its own search language.