How do I call total # threads from specific forum?

[Shouzen]

Hello, I want to know if it's possible to display the total number of threads from a specific forum on the what's going on box?

[Opserty]

{$vbulletin->forumcache['X']['threadcount']}
X - Being the ForumID

[Shouzen]

<a href="http://www.animationtokyo.com/community/anime-theater-stream-anime/" target="_blank">http://www.animationtokyo.com/commun...-stream-anime/</a>

That's the forum I'm trying to call the threads from, however it shows up zero, is there anyway to get it to work seeing as it's a main forum for other subforums?