Need help with website. Not loading completely in Internet Explorer

The website is http://www.kidskornerfamilymag.com/.
It works fine with Google Chrome and Firefox but with Internet Explorer, it has issues!!
The validator says a lot is wrong with it. Can someone help me fix it? I've just been using the paste thing where it translates it into HTML for me from the site.
I used: http://validator.w3.org/ to tell me what's wrong with it but I don't know how to fix any of it!!!

You don't necessarily need to worry about the validation if you dont see any major issues with functionality or look. It doesn't appear there are any major errors on the client side so unless you thinking of making a lot of changes don't worry about it. Others may disagree and say fix it now!

With that being said, I think you could easily give it a full upgrade and make it a little more appealing with a re-design!

looks like a good magazine I wish you continual success.

Many of the error is because you use html4 attributes in a xHtml document.
align="", marginwidth="" scrolling="" etc.

In xHtml such thing must be handled by css either inline or stylesheet.

Start by coorecting these issues and then re-validate.