Help me make my fixed site into liquid
 

My site: http://www.eteknix.com/

I'm currently messing with designs and tinkered with my current theme but i can't seem how to make it into a liquid design like vbulletin forums.

Here is my CSS:

Quote:
/*
LAYOUT: Three-Column
DESCRIPTION: Three-column 950px fixed layout with two sidebars on either side of content
*/

body {
min-width:960px;
}
#main {
width:960px;
margin:0 auto;
overflow:hidden;
position:relative;
}
#container {
width:960px;
float:left;
margin:0;
}
#content {
margin: 0 220px 0 230px;
overflow:hidden;
}
#primary {
width:220px;
float:left;
margin: 0 0 0 -960px;
}
* html #primary {
left: 20px;
position: relative;
}
#secondary {
width:220px;
float:left;
margin: 0 0 0 -220px;
}
#footer {
clear:both;
}
#subsidiary {
width:960px;
margin:0 auto;
overflow:hidden;
}
#subsidiary .aside {
width:300px;
float:left;
margin:0 10px 0 10px;
}
#subsidiary #third {
margin:0 0 0 10px;
}
#siteinfo {
clear:both;
width:940px;
margin:0 auto;
}
.fixed {
width:960px;
margin:0 auto;
}
Can anyone see how i would make the 3 columns wider and to make it liquid style like vbulletin forums where it will adjust to the screen resolution.

Thanks,

Andy