Using the style_fetch hook on external pages

[HolisticEarth]

I have a program that I wrote that extracts information from forums and outputs it to a static external file.

It utilizes bbcode, and the problem is that the bbcode changes from style to style, specifically the way I quote someone.

I have tried:

$styleid = 24;
($hook = vBulletinHook::fetch_hook('style_fetch')) ? eval($hook) : false;

But it does not seem to work.

How can I specify the system to use a certain style from inside an external file?