PokerTracker

Which network do I choose for Bovada?
thank you

That would be Ignition. You can manually import downloaded hands from the Ignition (Bovada) client into PokerTracker 4 using 'Play Poker -> Get Hands From Disk':

Ignition (Bovada/Bodog) Manual Import of Hand Histories Guide

If you want to import hands while playing ('Play Poker -> Get Hands While Playing') and display a HUD then that will require the use of the Ignition Hand Grabber to create the required hand histories:

Ignition (Bovada/Bodog) Hand Grabber

Ignition (Bovada/Bodog) Hand Grabber Guide