Actually, I want to know this, too, for the purpose of increasing my skill in PHP; I'd like to try installing the hack on an old version. There is no security issue here, since the site I hack for has upgraded to 2.0; The old 1.1.3 exists only on my linux box, which isn't connected to the internet at all--NO chance of hackers getting into it, and if they did, all they'd find is a whole bunch of posts with the title "testing" and the body "testing"
If need be, I'll get Cid (the owner of the site I php-hack for) to send me an archived version of 1.1.6 to test on (if he still has it), but that's just senseless; I already have 1.1.3 up and running.