Site is fine when viewed in FF but not IE or Safari PLEASE HELP!

My website is not able to be viewed in IE or Safari properly however it is viewed fine in FF. www.njmdesigns.com (http://www.njmdesigns.com)
Not sure where I went wrong with the coding. Any help would be greatly appreciated. I am just looking to have the home page straightened out. Thanks.

To expect cross browser support, you need to supply a valid markup to the browsers. See the errors in your markup at http://validator.w3.org/check?uri=http://www.njmdesigns.com/

Create or add one new CSS for only IE or write CSS hack for IE problem.

CSS hack like

<!--[if IE]>
<link rel="stylesheet" type="text/css" href="iehacks.css" />
<![endif]-->

<!--[if IE 7]>
<link rel="stylesheet" type="text/css" href="iehacks-5.css" />
<![endif]-->

Suppose create iehack.css file then write below code for top h1 title

.h1text h1{
font-size:14px;
}

so font size 14px read value only for IE

I can't see any difference between FF3, IE7, IE8 or Safari4. Maybe you've fixed it?

Fixed all the problems. Thanks everyone.