Download the templates you want to your computer. Start with the template index page for the style you prefer, go to the File menu in your browser, select "Save As" and be sure to specify "Source" or "HTML source" as the file type. Note that each link on the index page (e.g. Syllabus) goes to a separate subpage; follow the links you want to use and then save each of those pages as above. (If you don't download all of the subpages, remember to remove the links for them from the index page.)
To use the templates, simply open them in your favorite editor and modify them as you wish; starting from templates gives you a head start on writing Web pages, but otherwise the process follows what is discussed in the Building and Publishing sections of this guide.