After logging in to your Admin Panel, click on the "Change Password" tab on the top left of any Admin Panel page. Just fill in the form to change your password, and optionally also your username.  For added security, changing your username/password from your website Admin Panel will only change it for your website Admin Panel - not your WordPress blog (available as an itegrated blogging option with UltimateWB Full).  You can change the password for your WordPress blog directly from its admin panel.  The starting username/password is again admin/testpass and should be changed, especially if you want to keep the Blog status on Active on your website.