Just ensure the checkbox is checked for Host Intrusion Prevention signature content in your update task.
You don't need a seperate update task for HIP or any other point product.
Do you mean the client tasks? I haven't set one up yet as I'm just testing a sample of computers at the moment. Finding the documentation very detached from the product itself.
When I installed VirusScan, all the pull tasks etc seemed to be added and configured automatically, not sure if I need to create a task for HIPS to update too?