How can I edit a php file in vb3.5.0 ?

[BoYagoob]

Hello,

Due to the new system used in vb 3.5.0, I would like to know how can I preform this hack used in 3.0.x to 3.5.x :

Step 2, open usercp.php
Step 3,
---- find ----

if (!$bbuserinfo['userid'] OR !($permissions['forumpermissions'] & CANVIEW))
{
print_no_permission();
}

// main page:

---- end find ----

Step 4,
---- below add ----

// ########## start notes ############

if ($_POST['do'] == "notes")
{
$bbuserinfo['notepad'] = $_POST['notes'];
$notesql = "UPDATE " . TABLE_PREFIX . "user SET notepad = '" . addslashes($bbuserinfo['notepad']) . "' WHERE userid = $bbuserinfo[userid]";
$DB_site->query($notesql);
}

// ######### end notes ##############

---- end below add ----

Step 5, save file + close

Please, can you help me in his issue ?

Regards ..