Oops, spoke too soon. I am now getting the error below when trying to "save" forum settings...

Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/findbrun/public_html/my website.com/forum/includes/admin.inc.php on line 833

Warning: Cannot modify header information - headers already sent by (output started at /home/findbrun/public_html/my website.com/forum/includes/admin.inc.php:833) in /home/findbrun/public_html/my website.com/forum/includes/admin.inc.php on line 849

Guess I'm back to the beginning.