IE vs FF - I'm afraid I made a mess...

[Rocketsmart]

When I sat down a year and a half ago to build http://moviesoncable.com I chose to make extensive use of CSS. Unfortunately, I only knew a thimble-full about CSS. I decided to ignore the issues of IE not following w3c and target IE specifically because 90% of my audience would likely be using IE.
The site has been open to the public for a year now and I’ve just completed a major upgrade of the entire thing – with the notable exception of becoming multi-browser compatible.
I think my biggest single question is: Where in the wide, wide world of sports do I even start?
I have some positioning issues, some background issues, and issues I haven’t identified yet.
Any advice would be greatly appreciated!
Thanks!
Scott

[drhowarddrfine]

Starting from the top, for some reason the validator says you don't have a doctype but, clearly, you do. I just don't see what the problem is there but it also claims you have 245 errors but I think that some of that may be due to this doctype issue.

[Kravvitz]

There's a script element before the doctype. The only thing allowed before the doctype are XML processing instructions.

Please fix your XHTML (http://validator.w3.org/check?verbose=1&uri=http%3A%2F%2Fmoviesoncable.com%2Fmoc.php) and CSS (http://jigsaw.w3.org/css-validator/validator?uri=http%3A%2F%2Fmoviesoncable.com%2Fmoc.php&usermedium=all) errors.

Here are links to some of the best resources for beginners.
Getting started with HTML (http://www.w3.org/MarkUp/Guide/)
More Advanced Features (http://www.w3.org/MarkUp/Guide/Advanced)
Adding a touch of style (http://www.w3.org/MarkUp/Guide/Style)
Learning CSS (http://www.w3.org/Style/CSS/learning)
HTML 4.01 Specification (http://www.w3.org/TR/html401/)
CSS2 Specification (http://www.w3.org/TR/REC-CSS2/)