*** This add-on simply put a link in admin > modules > shipping > postcanada to edit your CPC profile.

In catalog/includes/modules/shipping/canadapost.php

Find (line 26):
---------------

$this->description = MODULE_SHIPPING_CANADAPOST_TEXT_DESCRIPTION;


Replace with:
-------------

$this->description = MODULE_SHIPPING_CANADAPOST_TEXT_DESCRIPTION . '
CPC Profile
<a href=""http://sellonline.canadapost.ca/servlet/LogonServlet?Language=0 target=_blank><u>> Modify my profile