The forbidden Lockdown ??

I want to install this plugin, and totally dont understand why its reprogrammed for the new version of Vbulletin, it is a nice hack.
I had to replace this in my showtread.php:

this:
[code removed - Erwin]

But after that I dont have any Usernames anymore, the lockdown workz.
I need to get the usernames back, can anyone see a missing or wrong part in this code??
please help.

[Erwin]

We do not allow Lockdown to be discussed here. You yourself said it was forbidden. Thread closed, post edited.