Get a departmental web account. Many references are available online and offline to help you learn enough HTML to expand on the sample template and do complex pages. If you don't have the time or desire to do your own HTML, remember that lots of CCSF students are anxious to show off their skills. Hiring a student may be the way to go.
File extensions count.
If you want the web server program to display your HTML code correctly, you must add either .html or .htm as a suffix to the name of your file. Likewise, graphics files most often sport the extensions .gif or .jpg . The web server program runs on Unix, which is case-sensitive. If you name a file 'bingo.html' and then construct a link to that file as 'Bingo.html', the link won't work. Make your links portable.