Hello Paul,
Yes, we can help you to modify your website.
Let us have a look into the doc file you shared, in the meantime please reply us so that we can discuss more.
We have very good experience in website designing and development using WordPress, PHP, CodeIgniter, CakePHP, Laravel, MySQL, Ajax, HTML5, CSS3, Bootstrap, jQuery, JavaScript etc...
Let's discuss more details...
Regards
Esha