Fitting a mechanical boost controller.

[Dazz]

I had a search and i couldnt find anything that helped me so could some kind person explaine to me how i fit a boost controller to my S12.
I purchassed this controller;

I know it plumbs into the vacuum line, but how so? Pictures or a funky diagram would benifit me also others looking at fitting one in the near future?
Dazz