hi there,
first thing to try would to put a doc type at the beginning of your code, if you don't have one of these the browser will default to "quirks" mode and is a little on the unpredictable side.
In the validator, it tells you information about each error/warning i.e what it is and where it is within the page.
if you have a look at:
http://www.webforumz.com/webforumz-c...hing-teach.htm
there are some good
html/
css sites that will kick you off with all the information you need.
hope this helped,
B xx