Embed Gallery2 Imageblock in new page – how???

First of all, yes, I have the WPG2 plugin, and NO, it doesn’t do what I want.

I just want to run the following code in the text of my “About” page:
<?php @readfile(‘https://bigblacksun.com/gallery/main.php?g2_view=imageblock.External&g2_blocks=randomImage&g2_show=title&#8217;); ?>

However, WP just strips this code out. How do I get it run without adding it directly to the template, which would then cause it to appear on all pages built on that template.