I've been looking for help with the same (that's how I came across this post). Hope someone can help.

It's not broken... it's just not in the right place it seems, go back one level and you will find it. It's not in the fasttrack directory... it's in the exploits directory itself ( /pentest/exploits/...

It won't be the logon screen that you're used to, but hey... it's a logon screen (window rather).

Pull up the KDE menu -> System -> Settings -> System Administration -> Login Manager

Click on...