Max Photosize WordPress 2.8

any file larger then width 500 is being resized to a width of 500..i have added $GLOBALS[‘content_width’] = 800; to my functions.php within my theme folder. I am still unable to resolve my upload issue…any suggestions.

<?php
$GLOBALS[‘content_width’] = 800;
if ( function_exists(‘register_sidebar’) )
register_sidebar(array(‘name’=>’sidebar1’,
));
register_sidebar(array(‘name’=>’sidebar2’,
));

class Elixir
{
function timesince(){

global $post;

$older_date = abs(strtotime($post->post_date_gmt . ” GMT”));
$newer_date = time();

$chunks = array(
array(60 * 60 * 24 * 365 , ‘year’),
array(60 * 60 * 24 * 30 , ‘month’),
array(60 * 60 * 24 * 7, ‘week’),
array(60 * 60 * 24 , ‘day’),
array(60 * 60 , ‘hour’),
array(60 , ‘minute’),
);

$newer_date = ($newer_date == false) ? (time()+(60*60*get_settings(“gmt_offset”))) : $newer_date;

$since = $newer_date – $older_date;

for ($i = 0, $j = count($chunks); $i < $j; $i++) {
$seconds = $chunks[$i][0];
$name = $chunks[$i][1];

if (($count = floor($since / $seconds)) != 0) {
break;
}
}

$output = ($count == 1) ? ‘1 ‘.$name : “$count {$name}s”;

if ($i + 1 < $j) {
$seconds2 = $chunks[$i + 1][0];
$name2 = $chunks[$i + 1][1];

if (($count2 = floor(($since – ($seconds * $count)) / $seconds2)) != 0) {
$output .= ($count2 == 1) ? ‘, 1 ‘.$name2 : “, $count2 {$name2}s”;
}
}

echo $output;
}
}

$elixir = new Elixir();
?>