Viral plugin


I am trying to set up the viral marketing plugin. Can anyone tell me how I can install Colorbox? I am not clear on what it is, but it looks like it might come in handy with the viral marketing plugin.

Also, does anyone know if this viral plugin can include email address submissions, rather than just 'likes'? What about increasing the number of required 'likes' before they can get access? What about giving access after something is actually sold through affiliate marketing?