the addon is outdated and not compatible with xbmc frodo.
try to install
VideoDevil I am pretty sure I tested this on Frodo and I am pretty sure it includes the content you are looking for.
I really like the site that addon gives. Is there an alternative way to use xbmc to stream vids from any site?
If you install this
repo you can install a tube8 plugin which I just tested on Frodo and it works. You can also install the VideoDevil plugin which provided Tube8 as well as other content.