There are four things needed for a new account, as follows:
1) A login name. This will be what you use to login to AnimeSeen and the direct link to your list, at http://animeseen.electricpotential.net/loginname/. This can be a max of 16 characters, all lowercase, numbers allowed, but no spaces.
2) A display name. This is the proper, with caps, spaces, whatever, way of writing your name.
3) The hash of your password. You go here, type your password in twice (the same) and the hash it the result there.
4) A link to your anime blog if you've got one.
Just get me all these details via IRC or e-mail and the account should be created!