I never had any problems with that hack when I had it installed.
The best option is this:
Note leave this line in congif.php for as little time as posible, it will compromise security.
Add to config.php $debug=1;
Then visit:
http://x-mencomics.com/xfan/forums/s...&showqueries=1
This will give a list of queries that are being performed on showthread and you can look for a whole batch that are similar, or you could save the HTML and post it here.
Remember to remove $debug=1; from config.php