page width

To Change the width of the page you have to change width for the following classes in style.css or add it to your local.css by override (see DL handbook)

#header {
width: 950px;
}

.slideshow-inner{
width:950px;
}

.slideshow {
width:950px;
}

#slideshow-bottom{
width:950px;
}

#preface-wrapper {
width:950px;
margin:5px auto 0;
}

#wrapper {
width:950px;
}

#bottom-teaser {
width:950px;
}

#bottom-wrapper {
width: 950px;
}

#footer-wrapper {
width: 950px;
}

#footer{
width: 950px;
}

remember the max width is 950px so the only thing you can do is decrease it.
To easily change it in style.css (replace all with 950px to wat ever you want it)

change width of following sections

The patch above doesn't apply , please provide a correct patch

uploaded patch with updated css in correct file.