Features new in ZENworks 7 Server Management are simply ignored by ZENworks for Servers 3.0.2 Interim Release 1 Subscribers that receive version 7 Distributions. For example:
Dir Sync Granularity Pre and Post Execution Actions in Distributions MSI Distributions
However, the new Prohibited File policy can be sent from a version 7 Distributor and extracted and enforced on a version 3.0.2 Interim Release 1 Subscriber.