[Register]-SOLVED- unable to set field via postHook -- help needed

$username = $hook->getValue('username');
if (empty($username)) {
    $hook->addError('user', 'Username field empty');
    return false;
}

$name = $hook->getValue('name');
if (empty($name)) {
    $hook->addError('user', 'name field empty');
    return false;
}

$firstname = $hook->getValue('firstname');
if (empty($firstname)) {
    $hook->addError('user', 'firstname field empty');
    return false;
}

$usrobject = $modx->getObject('modUser', array('username' => $username));
$userid = $usrobject->get('id');
if (empty($userid)) {
    $hook->addError('user', 'Error getting user object');
    return false;
}
$usrobject->set('fullname', $name . ' ' . $firstname);
$usrobject->save();

[[!Register?
    &submitVar=`registerbtn`
    &activationResourceId=`57`
    &activationEmailTpl=`activationEmailTpl`
    &activationEmailSubject=`Thanks !`
    &submittedResourceId=`70`
    &validate=`nospam:blank,
        username:required,
        password:required,        
        password_confirm:password_confirm=^password^,
        firstname:required,
        name:required`    
    &placeholderPrefix=`reg.`
    $postHooks=`setFullName`
]]

<?php
$username = $hook->getValue('username');
if (empty($username)) {
    $hook->addError('user', 'Username field empty');
    return false;
}

$name = $hook->getValue('name');
if (empty($name)) {
    $hook->addError('user', 'name field empty');
    return false;
}

$firstname = $hook->getValue('firstname');
if (empty($firstname)) {
    $hook->addError('user', 'firstname field empty');
    return false;
}

$usrobject = $modx->getObject('modUser', array('username' => $username));
$userid = $usrobject->get('id');
if (empty($userid)) {
    $hook->addError('user', 'Error getting user object');
    return false;
}
$profile = $usrobject->getOne('Profile');
if(empty($profile)) {
    $hook->addError('user', 'profile not found');
    return false;
}

$profile->set('fullname', $name . ' ' . $firstname);
$profile->save();
$usrobject->save();

$profile = $hook->getValue('register.profile');
$profile->set('fullname',$hook->getValue('name').' '.$hook->getValue('firstname'));
$profile->save();
return true;

$modx->log(modX::LOG_LEVEL_ERROR,'My error message here');

$username = $hook->getValue('username');
if (empty($username)) {
    $modx->log(modX::LOG_LEVEL_ERROR, 'error on username');
    return false;
}
$name = $hook->getValue('name');
if (empty($name)) {
       $modx->log(modX::LOG_LEVEL_ERROR, 'error on name here');
    return false;
}

$firstname = $hook->getValue('firstname');
if (empty($firstname)) {
    $modx->log(modX::LOG_LEVEL_ERROR, ' error fname');
    return false;
}

$usrobject = $modx->getObject('modUser', array('username' => $username));
$userid = $usrobject->get('id');
if (empty($userid)) {
    $modx->log(modX::LOG_LEVEL_ERROR, 'error userid');
    return false;
}

//$profile = $usrobject->getOne('Profile');
//if(empty($profile)) {
//    $hook->addError('user', 'profile not found');
//    return false;
//}$profile = $usrobject->getOne('Profile');

$profile = $hook->getValue('register.profile');
if(empty($profile)){
    $modx->log(modX::LOG_LEVEL_ERROR, 'error profile');
    return false;
}
$profile->set('fullname', $hook->getValue('name') . ' ' . $hook->getValue('firstname'));
$profile->save();
return true;