my first recommendation to you is ditch frontpage and get a decent text editor.
please, do yourself a favor and learn html.
and if you want anything dynamic javascript and/or php
http://www.alistapart.com for good css information (kind of advanced)
http://www.w3schools.com for good basic html/css/javascript information. they have a 'sandbox' environment where you can play and see what happens.
http://www.htmldog.com/ is another great reference for css and html
http://www.phpfreaks.com/ for good php information
and usually if you have a question you can post it here and get a dozen conflicting answers.