Brajeshwar help with increasing main colum size

Hi all,

in the Brajeshwar theme im trying to increase the width from 400px to 600px but somehow in the css it doesnt seem to work. In fact it doesnt move the right bar so the text from main goes into the right colum. ??

also in the about part of theme it looks crap. Anyone know how to do this?

here is the code from the css:

#container {
margin: 0 auto;
width: 840px; (default is 760)
font-size: 0.75em;
text-align: left;
}
#wrap {
height: 1%;
margin: 4px 0;
background: url(i/wrap.gif) repeat-y;
}
#col-left {
float: left;
width: 150px;
padding: 20px 0;
text-align: right;
}
#col-main {
float: left;
width: 440px; (default is 400)
}
#col-right {
float: left;
width: 210px;
padding: 20px 0;
}

HELP ??