How do I image my MBP using NetInstall.

I have an image on my Mac Server (iMac). I can see the image under NetInstall. How do I get my MBP to connect and see and load that image. I have tried to restart the MBP while holding down the 'N' key, but nothing happens. All the articles I have read tell me how to CREATE the image, but not hw to DEPLOY it.

Thank you.