Cubase and recognizing line 6 spider v amp

Hi everiobody!

I have a Line6 Spider V30 amp, and i can’t make recording whit this.
I have an audio interface focusrite too. I need this unit to make recordings, or i need only the Amp, laptop whit Cubase Le?
Is there any tutorial video on the net, how this Works?

Thx,
András