Create Task via Escalation Rule

SOLVED

Hi 

a customer wants a follow up task created when a new case is entered - i though this would have been possible via the workflow but looks like the create new task action is not available on primary workflow rules so thought i would try it as an escalation rule but there is not option for creating a new task on their either

whats the best way around this issue? has anyone done this before that could post some sample code please?