Error on page – how do fix it?? HELP

You have an awful lot of validation errors on your home page that may be causing, or contributing to, the problem. There’s also at least one javascript on the page that isn’t working in IE8 (error reported). You might want to try deactivating all of your plugins and check to see if this resolves the problem. If it does, activate the plugins one by one – checking the site after each re-activation – until you find the problematic plugin(s).

use firefox i dont use windows internet explorer any more

I get a few visitors using IE so it has to work for all of them!

OK, plug ins deactivated and the error message has gone. But the margins are still messed up. – should be left aligned and without the funny bullet points…it just happened with no warning… Any other suggestions?
Prof

idk

im new to wordpress

@englishlangprof: work through the validation errors using the link I gave above.

Yes, got it. Ta