I think this will connect, although it's pretty deep inside the Micro$oft Knowledge Base.
The clicky above should go to a KB article that says who (at Micro$oft) to contact if you have "forgotten" your ContentAdvisor password.
Still lookin' for something more direct.
I note that a couple of other articles refer to separate passwords for "Administrator" and "ContentAdministrator." There are also some significant differences in what you can do with specific versions of IE. More details?