Gulliver -

My understanding of it was that your email address is your "Account Name" on that website and the password they ask you to enter is the password that you will use on that site to access your own page(s) - NOT the password to access your email. You should also be able to add a "display name" that will be the only thing seen by or accessible to anyone else on the site.

That's a fairly common method of identification. Even mudcat asks for an email address, a mudcat password, and a "Handle" name.

John