Help Please - Need To Find Something

I was trying to install the star hack from vbulletin.org, well the line of code it says to look for is not in the file it says. I was wondering if anyone could tell me where the below line of code is so that I can install this hack:

$usertitle=$userinfo[usertitle];

That is what I am supposed to find in showthread.php - but in vBulletin 2.0 it is not there - least not in mine that I see.