Microsoft has just updated the following KB Article:
FIX: A task sequence cannot download content from a Configuration Manager 2007 shared distribution point in System Center 2012 Configuration Manager SP1
Symptoms
Assume that you perform one of the following deployments:
- A task sequence by using the Download content if needed option
- A task sequence to a System Center Configuration Manager 2012 Service Pack 1 (SP1) client or a destination computer
In this situation, the task sequence cannot download content from a Microsoft System Center Configuration Manager 2007 shared distribution point.