On line 122 of setup/index.php CHANGE
$sql='INSERT INTO '.PREFIX.'staff SET created=NOW(), isadmin=1,change_passwd=0,group_id=1,dept_id=1 '.
',email='.db_input($_POST).',lastname='.db_input('Admin').
',username='.db_input($_POST).',passwd='.db_input(MD5($_POST)).
',timezone_offset='.db_input($tzoffset);
TO
$sql='INSERT INTO '.PREFIX.'staff (created, isadmin, change_passwd, group_id, dept_id, email, lastname, username, passwd, timezone_offset) VALUES (NOW(), 1,0,1,1,'.db_input($_POST).','.db_input('Admin').','.db_input($_POST).','.db_input(MD5($_POST)).','.db_input($tzoffset).')';
