Almost there. What is going on here around line 171 of MOS_SMF.php
// Figure out the password, and load the settings.
$user_settings = mysql_fetch_assoc($request);
if ($passwd == "" || !isset($passwd)){$passwd = md5($_REQUEST['passwrd']);} // this is for Mambo, later
$md5_passwrd = md5_hmac($_REQUEST['passwrd'], strtolower($user_settings['memberName']));
I get this error when trying to log in:
Fatal error: Call to undefined function: md5_hmac() in /home/httpd/vhosts/goosemoose.com/httpdocs/cfc/Sources/MOS_SMF.php on line 171