hi,
That would be easy ....
turn on debug mode in your /includes/config.php
PHP Code:
$config['Misc']['debug'] = true;
then you use the phrases manager to add whatever you'd like (set product to your productname (or 'vbulletin')) then when you export the product your phrases will be automatically included.
DO NOT TURN ON DEBUG MODE ON YOUR LIVE SITE !!!!!!
can't say that enough