I was not aware that myspace needs unlocking. If you could explain more fully then perhaps someone can help.
However should you mean that your employer has blocked access to myspace from their network that is another matter. I have heard of people being fired for gross misconduct for misuse of company assets for attempting this. It was based on the employee knowing full well that the employer had a business policy and the employee, in spite of that, attempting to negate it.
t, August 2007