[Newbies] User account for squeak wiki.squeak.org

[Miguel Enrique Cobá Martínez]

I am trying to edit a page but I can't find the place to
create a user account.

When I click the edit button in some page from the wiki,
Iceweasel (Debian's unbranded Firefox) ask for a username and a password.

When I click the history button, I get a list of changes and in the
user column I see strings like:

ACCF7AF4.ipt.aol.com

so this makes me think that the edition of pages it is open and your
IP address is used as your username.
But, the problem is, I can't pass the user/password request.

The user/password dialog says:

http://wiki.squeak.org solicita un usuario y contraseña. El sitio dice: 
"/squeak/*"

Something like:

http://wiki.squeak.org needs a username and password. The site says: 
"/squeak/*"

And if I click the cancel button it responds with:

Unauthorized for: /squeak/*

Can you please tell me what is the process to edit a page in the 
wiki.squeak.org?

Thanks,
Miguel Cobá