Ii is a matter of the template, so you should find a one-column template or just create one!
<?php defined( '_VALID_MOS' ) or die( 'Direct Access to this location is not allowed.' );$iso = explode( '=', _ISO );echo '<?xml version="1.0" encoding="'.$iso[1].'"?' .'>'._LEND;?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="<?php echo _LANGUAGE; ?>" xml:lang="<?php echo _LANGUAGE; ?>"<?php echo (_GEM_RTL) ? ' dir="rtl"' : ''; ?>><head><meta http-equiv="Content-Type" content="text/html; <?php echo _ISO; ?>" /><?php mosShowHead(); ?><link href="<?php echo $mosConfig_live_site; ?>/templates/<?php echo $mainframe->getTemplate(); ?>/css/template_css<?php echo (_GEM_RTL) ? '-rtl' : ''; ?>.css" rel="stylesheet" type="text/css" media="all" /><?php if ( $my->id ) { initEditor(); } ?><?php if ((mosCountModules( 'left' )>0) or (mosCountModules( 'user1')>0)) {?><style type="text/css"> #content{margin-left: 190px}</style> <?php } ?><?php if ((mosCountModules( 'right' )>0) or (mosCountModules( 'user2' )>0)) {?><style type="text/css"> #content{margin-right: 200px}</style> <?php } ?><!--[if IE 6]><style type="text/css">ul.table li, .business-card, div.table, div.blog, div.blogleading, div.blog_more, div.tablerow, div.blogrow, .modfpg-container { float: none;}</style><![endif]--></head><body><div id="totalwrap"><div id="header"><div class="headin"><div class="logo"><p><?php echo $mosConfig_sitename; ?></p></div><div class="headtop"><?php mosLoadModules('language', -2); ?></div><div class="topmenu"><?php if ((mosCountModules( 'top', -1 )>0)) { mosLoadModules('top', -1); } ?></div></div></div><div id="contentwrap"><div class="shadow"><div id="content"><div class="pathway"><?php mospathway(); ?></div><br /><?php mosLoadModules('header', -2); ?><?php mosMainBody(); ?></div></div></div><?php if ((mosCountModules( 'left' )>0) or (mosCountModules( 'user1' )>0)) {?><div id="leftcolumn"><div class="columnin"><?php mosLoadModules('left', -2); ?></div></div><?php } ?><?php if ((mosCountModules( 'right' )>0) or (mosCountModules( 'user2' )>0)) {?><div id="rightcolumn"><div class="columnin"><?php mosLoadModules('right', -2); ?></div></div><?php } ?><div id="footer"><?php include_once( $mosConfig_absolute_path.'/includes/footer.php'); ?></div></div></body></html>