hi,
when i visit: http://www.bright-shadows.net/challenges/exploit_rhc6/ i get a mysql error:

Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /www/htdocs/v096861/include/challenge.inc.php on line 83
Warning: mysql_free_result(): supplied argument is not a valid MySQL result resource in /www/htdocs/v096861/include/challenge.inc.php on line 91

i think that is not correct, is it?

I don't know how that happened but now it seems to work I guess?