IE, Opera + Firefox - Issues

[fadetoblack]

Hi, can anyone have a look at this for me and fix it to work in IE, FF and OPERA.

http://waynerooneyonline.com/wordptest/

http://waynerooneyonline.com/wordptest/wp-content/themes/blue-zinfandel-3column/style.css

body {
background: #EFEFEF url(images/content.gif) top center repeat-y;
color: #333333;
font-size: 11px;
font-family: Verdana, Helvetica, Sans-Serif;
margin: 0px auto 0px;
padding: 0px;
}

#wrap {
background: #EFEFEF url(images/bg.gif) top center repeat-y;
color: #333333;
font-size: 11px;
font-family: Verdana, Helvetica, Sans-Serif;
margin: 0px auto 0px;
padding: 0px;

}

The problem I can see is that content.gif and bg.gif move when the page is resized.

I don't think the problem occurs in IE, unless I add something to the bar where "home" is. e.g. http://waynerooneyonline.com/wordp


thanks for all your help in advance!