[CentOS] php-pear - required files - which rpm

Hi

I am tying to install a php based application but the error i recieve is

Failed opening required 'HTML/Template/IT.php'

This is something to do with pear from what i can tell but i do have 
php-pear installed. The file IT.php is not on my system but does anyone 
know what rpm this would come from?

thanks