Hello Saiko, and welcome to Seven Forums.
Nope, it still works for me just fine. It starts off as a blank black screen at first, shows the Windows 7 logo a few seconds afterwards, then it starts showing what you see in the example screenshot in the tutorial.
Did you unblock the screen saver in step 4 before moving it to the system32 folder?
Does the screen saver play for you when you double click on it on your desktop?