It could be that Max Degree of Parallelism (MAXDOP) is set to 1 at the instance (server) level, but as others have stated, parallelism is not edition-specific.

Regards

Lempster

EDIT: Didn't read the original post properly! Clearly, parallelism is being used. Setting MAXDOP to 1 at the instance level would prevent parallelism so if you weren't seeing any parallel operations in a QEP, that setting could be the reason.