A New Password doesn't arrived

Hi, i became a new user, register, input mail and login name, but field password haven't, on my email i got letter what i should activate by pressing the link below. When i go to the my account a want to change the password, but where is??? What is my password, i never saw him!!! Please help! By pressing button Reset password, i don't got a new password on e-mail, just have a link to go to my account!