The upload folder contains 2 directories: clientscript & includes
Both these directories exist in your VB directory and should be copied up.
for example if your forums are located at:
http://www.YouDomain.com/forums/
Then you copy the 2 directories to forums/clientscript & forums/includes
Then go toy our ACP -> Plugins & Products -> Manage Products and add/import this file: product-passivevideo.xml
Unfortunatly the author is MIA so support will be minimal except for those of us that pass by from time to time in hopes he returns. There is another solution here that seems to be well supported and covers many more media types. In the mean time good luck with your forums and hope this got you up and running