Full support for Cisco flexible netflow

I specifically have 6506E switches with sup2T-10Gs running 15.1 IOS.  The only option is flexible netflow.  NTA will not accept the record traffic even if I customize the record configuration in IOS.  Given that flexible netflow is growing in use on 6500s, 4500s, and WLCs, NTA needs to get this functionality.  At minimum, allow a configuration to map record fields