Your code had some big holes in it, so I had to make some guesswork. You could test this one out, it seems to work the same on ff3, ie7 and ie8 that I tested.
I'm not sure if it's something that you wanted, but you really should provide an better example with your question.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>test</title>
<style type="text/css">
html{
height:100%;
margin: 0;
padding: 0;
}
body {
font-size:12px; font-family:"trebuchet MS", verdana, arial, sans-serif;
background: #CCCCCC;
word-wrap:break-word;
height: 100%;
margin: 0;
padding: 0;
}
#wrapper {
text-align: left;
height:auto;
height: 100%;
margin: 0 auto -200px; /* the bottom margin is the negative value of the footer's height */
padding: 0px;
border:0;
width: 1000px;
background: #FFFFFF;
}
.footer,
.push {
height: 200px; /* .push must be the same height as .footer */
position:absolute;
bottom:0;
background:red;
}
</style>
</head>
<body>
<div id="wrapper">Lorem</div>
<div class="footer">Footer jabba jibba jubba hubba bubba dubba dibba dei</div>
</body>
</html>
I hope that helps.