Mosquito is not working

Hi everyone, I have a problem with Mosquito component. When I want to use it, it is not working. I have use it like in this tutorial https://www.youtube.com/watch?v=CnvJ3bGuI1w but nothing happend. Did I missed something? Is Mosquito all I need or I have to download some extra plug-in or something? Please can somebody help me? Thank you, Tom