I've inherited an old website that runs Vbulletin 4.02 and VBA 4.1. I'm in the process of working out the best way to update everything and thought I would start with VBA. I've copied the files from the update over and changed the forum path in the index.php file to match my site. After running the vbacmps_install.php and selecting to Upgrade, everything appeared to work ok but now opening the website I'm greeting with the following log error :-

PHP Fatal error:  Call to undefined method vB_Template::fetch_css_path() in /srv/www/mysite/public_html/forums/includes/vba_cmps_include_top.php on line 598
Anyone have any thoughts on how to fix?