Magento: Forgotten Pword returns Blank Browser Page

Hi, I really hope someone here can help out with this.

Magento 1.6.1.0 new install

If a customer clicks the forgotten password link on the frontend, they are sent an email with a link to click. When they click the link in the email, a blank white page is shown in the browser (no prompt to reset pword). The path when the email link is launched looks like this:

www.mystore.com/customer/account/resetpassword/?id=4 token=26f8abcc1efd5559ce81ced2706586db

The “error_log” said:
[30-Nov-2011 07:42:50] PHP Fatal error: Call to a member function setCustomerId() on a non-object in /home3/bestcara/public_html/app/code/core/Mage/Customer/controllers/AccountContr*​oller.php on line 587

I really need to fix this as soon as possible. Any help is much appreciated!

Code block from AccountController.php

     * User is redirected on this action when he clicks on the corresponding link in password reset confirmation email
     *
     */
    public function resetPasswordAction()
    {
        $resetPasswordLinkToken = (string) $this->getRequest()->getQuery('token');
        $customerId = (int) $this->getRequest()->getQuery('id');
        try {
            $this->_validateResetPasswordLinkToken($customerId, $resetPasswordLinkToken);
            $this->loadLayout();
            // Pass received parameters to the reset forgotten password form
            $this->getLayout()->getBlock('resetPassword')
                ->setCustomerId($customerId) <------------------------------------Line 587
                ->setResetPasswordLinkToken($resetPasswordLinkToken);
            $this->renderLayout();
        } catch (Exception $exception) {
            $this->_getSession()->addError(Mage::helper('customer')->__('Your password reset link has expired.'));
            $this->_redirect('*/*/');
        }
    }

Looks like my theme was not supported for Magento 1.6.1.0

go to: app/design/frontend/default/[your_custom_theme_folder]/layout/customer.xml

add these codes:

<customer_account_resetpassword translate="label">
    <label>Reset a Password</label>
    <remove name="right"/>
    <remove name="left"/>

    <reference name="head">
        <action method="setTitle" translate="title" module="customer">
            <title>Reset a Password</title>
        </action>
    </reference>
    <reference name="root">
        <action method="setTemplate">
            <template>page/1column.phtml</template>
        </action>
        <action method="setHeaderTitle" translate="title" module="customer">
            <title>Reset a Password</title>
        </action>
    </reference>
    <reference name="content">
        <block type="customer/account_resetpassword" name="resetPassword" template="customer/form/resetforgottenpassword.phtml"/>
    </reference>
</customer_account_resetpassword>

Works like a charm!