cannot download theme

On the URL above I have been trying for two days to login so that I can download a theme template and begin to construct my blog. I am using the username and password sent to me my wordpress. In fact, I reset the password several times and in every case it says Incorrect Password.
I went back to trying admin and each of the several passwords I’ve been sent, as well as three different ones I selected myself somewhere during the process, and either get a Unknown username or Incorrect password.
Can you please help?