PHP Help for Newbie Please! Applying Patch?

Hello,

I've installed a Wordpress Blog on my server. It's working fine except
one feature. There is a "Post By Email" feature, which I have set up,
and it works, but it only posts the subject line, and not the body
text.

This is a known bug, and they released a patch to fix it. I need help
applying this patch please.

URL: http://trac.wordpress.org/ticket/4337

This is the patch: http://trac.wordpress.org/attachment/ticket/4337/class-pop3. php.patch

I simply do not understand what I have to do. Can anyone please help
me?

I'll post the entire text of the wp-mail.php below

Re: PHP Help for Newbie Please! Applying Patch?

This (i think) is the file that needs to be modified: wp-mail.php
--


require(dirname(__FILE__) . '/wp-config.php');

require_once(ABSPATH.WPINC.'/class-pop3.php');

error_reporting(2037);

$time_difference = get_option('gmt_offset') * 3600;

$phone_delim = '::';

$pop3 = new POP3();

if (!$pop3->connect(get_option('mailserver_url'),
get_option('mailserver_port')))
wp_die(wp_specialchars($pop3->ERROR));

$count = $pop3->login(get_option('mailserver_login'),
get_option('mailserver_pass'));
if (0 == $count) wp_die(__('There doesn’t seem to be any new
mail.'));


for ($i=1; $i <= $count; $i++) :

$message = $pop3->get($i);

$content = '';
$content_type = '';
$content_transfer_encoding = '';
$boundary = '';
$bodysignal = 0;
$dmonths = array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul',
'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
foreach ($message as $line) :
if (strlen($line) < 3) $bodysignal = 1;

if ($bodysignal) {
$content .= $line;
} else {
if (preg_match('/Content-Type: /i', $line)) {
$content_type = trim($line);
$content_type = substr($content_type, 14,
strlen($content_type)-14);
$content_type = explode(';', $content_type);
$content_type = $content_type[0];
}
if (preg_match('/Content-Transfer-Encoding: /i', $line)) {
$content_transfer_encoding = trim($line);
$content_transfer_encoding = substr($content_transfer_encoding,
27, strlen($content_transfer_encoding)-14);
$content_transfer_encoding = explode(';',
$content_transfer_encoding);
$content_transfer_encoding = $content_transfer_encoding[0];
}
if (($content_type == 'multipart/alternative') && (preg_match('/
boundary="/', $line)) && ($boundary == '')) {
$boundary = trim($line);
$boundary = explode('"', $boundary);
$boundary = $boundary[1];
}
if (preg_match('/Subject: /i', $line)) {
$subject = trim($line);
$subject = substr($subject, 9, strlen($subject)-9);
$subject = wp_iso_descrambler($subject);
// Captures any text in the subject before $phone_delim as the
subject
$subject = explode($phone_delim, $subject);
$subject = $subject[0];
}

// Set the author using the email address (From or Reply-To, the
last used)
// otherwise use the site admin
if ( preg_match('/(From|Reply-To): /', $line) ) {
if ( preg_match('|[a-z0-9_.-]+@[a-z0-9_.-]+(?!.*<)|i', $line,
$matches) )
$author = $matches[0];
else
$author = trim($line);
$author = sanitize_email($author);
if ( is_email($author) ) {
echo "Author = {$author}

";
$author = $wpdb->escape($author);
$result = $wpdb->get_row("SELECT ID FROM $wpdb->users WHERE
user_email='$author' LIMIT 1");
if (!$result)
$post_author = 1;
else
$post_author = $result->ID;
} else
$post_author = 1;
}

if (preg_match('/Date: /i', $line)) { // of the form '20 Mar 2002
20:32:37'
$ddate = trim($line);
$ddate = str_replace('Date: ', '', $ddate);
if (strpos($ddate, ',')) {
$ddate = trim(substr($ddate, strpos($ddate, ',')+1,
strlen($ddate)));
}
$date_arr = explode(' ', $ddate);
$date_time = explode(':', $date_arr[3]);

$ddate_H = $date_time[0];
$ddate_i = $date_time[1];
$ddate_s = $date_time[2];

$ddate_m = $date_arr[1];
$ddate_d = $date_arr[0];
$ddate_Y = $date_arr[2];
for ($j=0; $j<12; $j++) {
if ($ddate_m == $dmonths[$j]) {
$ddate_m = $j+1;
}
}

$time_zn = intval($date_arr[4]) * 36;
$ddate_U = gmmktime($ddate_H, $ddate_i, $ddate_s, $ddate_m,
$ddate_d, $ddate_Y);
$ddate_U = $ddate_U - $time_zn;
$post_date = gmdate('Y-m-d H:i:s', $ddate_U + $time_difference);
$post_date_gmt = gmdate('Y-m-d H:i:s', $ddate_U);
}
}
endforeach;

$subject = trim($subject);

if ($content_type == 'multipart/alternative') {
$content = explode('--'.$boundary, $content);
$content = $content[2];
$content = explode('Content-Transfer-Encoding: quoted-printable',
$content);
$content = strip_tags($content[1],
'