Right you are. Here it is:Post (I shouldn't have to write this...) your config.php being carefull to omit passwords and usernames.
<?php
# CMS Made Simple Configuration File
# Documentation: /doc/CMSMS_config_reference.pdf
#
$config['dbms'] = 'mysql';
$config['db_hostname'] = 'localhost';
$config['db_username'] = 'username';
$config['db_password'] = 'password';
$config['db_name'] = 'sierraclubswmg_cms';
$config['db_prefix'] = 'cms_';
$config['root_url'] = 'http://www.sierraclubswmg.org';
$config['timezone'] = '';
$config['admin_dir'] = 'is-renamed';
$config['url_rewriting'] = 'mod_rewrite';
?>
Oh, of course.Simple: in your browser instead of using http://adresstothesite.something/admin (non encripted) use https://adresstothesite.something/admin (encripted)...
Note the HTTPS on the secure address...

If I type in the address from my bookmark it goes to the https address. If I change it to http, it rewrites to https and goes to the same place.