Yes, undo all the coding changes I had suggested.

The admin username/password is the information you selected for the Admin account during installation ... on the last page of the zc_install process.

They are *not* the same as what's in your configure.php files (well, unless you used that information there too, which I don't recommend).

You had entered "denny" and some password ... that's what you should use to login to the admin.