Column size increase

[sanil]

i think your problem is size of width on your home page

you can edit this portion of style.css
change the width of the site

#custom-doc {
margin:auto;text-align:left;
width:60em; /* !IE */
*width:780px;/* IE */
min-width:780px;
background-color: #ffffff;
}

if you want increase the size of width into 900px use this code

#custom-doc { 
width:69.23em;
*width:67.56em;
min-width:900px; 
margin:auto; 
text-align:left; 
}