Hi Tony,
Neil also posted this question as a comment in this thread:
SAP Screen Personas - How to render flavors in Netweaver Business Client (NWBC)
As you can see, this issue has not yet been resolved. However, we are very aware of this, and are looking into it.
Please bookmark this blog - if I have any new information, I will post it there. (I am Product Manager for NWBC).
Best wishes;
Julie Plummer.
SAP Screen Personas - How to render flavors in Netweaver Business Client (NWBC)