Nothing critical, but PHP5 changed how they handle the array_merge() function. If you are using PHP5 to serve ads, you will want to change this line in your ad_network.php file: if (count ($ads) > $ads_temp[3] + 1) $ads = array_merge ($ads[0], array_slice ($ads, -$ads_temp[3])); PHP: to this: if (count ($ads) > $ads_temp[3] + 1) $ads = array_merge ((array)$ads[0], (array)array_slice ($ads, -$ads_temp[3])); PHP: The setup instructions have been updated to reflect it, and it's backwardly compatible with PHP4.
made the change, and thanks. But what would the result be if no change was made? No big deal, just curious.
For non-vBulletin sites (vBulletin has good error trapping), it would cause ad_network_ads.txt file to be cleared out once in awhile.