[Creed]

I have found where you need to make changes for this to work

In sendmessage.php you added the array, but you didn't add the case to tell it what to do when it requests an IM to 'xfire' and thus it defaults to MSN.

// ############################### start im message ###############################
if ($_REQUEST['do'] == 'im')
{
	globalize ($_REQUEST, array('type', 'userid' => INT));

	// verify userid
	$userinfo = verify_id('user', $userid, 1, 1, 15);

	switch ($type)
	{
		case 'aim':
		case 'yahoo':
			$userinfo["{$type}_link"] = urlencode($userinfo["$type"]);
			break;
		case 'icq':
			$userinfo['icq'] = trim(htmlspecialchars_uni($userinfo['icq']));
			break;
		default:
			$type = 'msn';
			break;
	}

	if (empty($userinfo["$type"]))
	{
		// user does not have this messaging meduim defined
		eval(print_standard_error('error_immethodnotdefined'));
	}

	// shouldn't be a problem hard-coding this text, as they are all commercial names
	$typetext = array(
		'msn'   => 'MSN',
		'icq'   => 'ICQ',
		'aim'   => 'AIM',
		'yahoo' => 'Yahoo!'
	);

	$typetext = $typetext["$type"];

	eval('$imtext = "' . fetch_template('im_send_' . $type) . '";');

	eval('print_output("' . fetch_template('im_message') . '");');

}

There is where you need to add the case to tell it what to do when you send an xfire IM, or in your case simply click the link. All you should have to do is right under:

		case 'aim':

add:

		case 'xfire':

and all things should work out your way