> The owner of the site said they program in PHP 
[not HTML]
> so what I got is not accurate.
> Is he bluffing?> Does this program convert websites into HTML?
No, he's not bluffing.

No, the app does not "convert" anything.  At least it does no more converting
than your web browser.

PHP *generates* dynamic HTML.

HTTrack saves that dynamically generated HTML locally/offline.

You may get much of the site's content downloaded with HTT, but it is true
that if it's a PHP site (or a site with *any* dynamic content eg. java,
javascript, flash, etc.), you cannot truly duplicate it offline with HTT.

HTH,
B^D