Once you have your 3 gold hearts IT Man 's email address [email protected] so email him with your chosen name tag
And when you have 5 gold hearts you should become a PU within 24 hours (you might have to log out and in again to get those tools that are up and running to work, to see whats available now please read the rule thread)
To see how many points you need to become a power user and for how many points you get for each heart please read the RULE THREAD