Translating AppleScript to AppleEvents

Years ago, I used a technique described in a blog posting at Unsanity to figure out the appropriate AppleEvent to send to represent a given AppleScript. That blog entry is here: http://unsanity.org/archives/000107.php

I'm wondering if anyone knows how to accomplish the same thing on Intel-based machines. I'm hopeful that it's a simple matter of replacing the $r3 register argument with something else but I don't know enough about modern Intel architectures to know what that might be.

Thanks in advance.

Greg