So you are able to get to the logon screen, but it does not accept your password, correct?

Check that the .cfg file points to the correct .pass file.

# Full path and file name of the password file.
$auth_pw_file = $db_script_path . "/default.pass";

And that the logon form is querying the correct .cfg
At the logon screen view the html source and look for

<input type=hidden name="db" value="default">

Note, in the above, "default" refers to the name of the .cfg file not the .db nor the .cgi file.

So in a nutshell, logon screen points to a .cfg file which points to .pass file. All pointing must be accurate.

I sure hope that you have the old password files if you previously had users. Of course upload files to the server as ascii. If you can't get to the logon screen, that is another issue.

Also, if you have moved the files to the new server, make sure the Auth folder has the correct permissions, which allow the script to wrtie to the folder. I think it's covered in the install instructions, but escapes me exactly.