vBPortal index.php - each latest thread is 1 query, and all the templates are queried unless you add them to the templatesused="" in index.php (which is not added properly by default). When I was using it, I found out that that index page had over 200 queries!!!
Your site is down now.
Try this URL to see the queries on your vBPortal index:
http://x-mencomics.com/xfan/index.php?showqueries=1
If it doesn't work, it means you are using a newer version of vB - in which case, turn debug mode ON in your Admin CP and try that URL again.
Remember to turn debug mode back to OFF - leaving it on is a security risk.