How to install theme/skin in AdminCP
 

I'm new to vBulletin, just purchased it yesterday. I know somewhat of the AdminCP, but don't know how to add a template, is their a step by step tutorial? or video?

Also, I don't understand how I can install MCG Chatbox Evo.


Can someone please help me, and not make me purchase a 'service'.

Regards,
grapplinghook