Footer wide problem in IE7

1

after tweaking as much as possible a dating script i finally thought to ask for some help
in FF3 the footer is wide since i use

#footerMain{
    width:100%;
    height:150px;
    background:url(images/ftb.jpg) repeat-x ;
    color:#DE7F0B;
margin:0;
}
#footer{
    width:950px;
    margin:0 auto;
    height:112px;
    position:relative;
}

now in IE7 things are not the same. the script uses a lot of tables and also uses the <center> tag…the footer goes after the </center> or </table> tags are closing so it should work…unfortunately is not
live link for help http://www.osdatetemplates.org/