Hi Jeff,
I haven't received my new disks yet, but hopefully this may help. Firstly have you done a style rebuild? This should integrate the new styles with the older ones. Also there is a new feature in 2010.5 which allows you to select options of MIDI only, MIDI + Real Tracks, Only Reals tracks etc (I'm not in front of BIAB at the moment so I'm going from memory.)
It's in the dropdown near where we previously selected "When Style & tempo match" etc.

Hope this helps.


Cheers,
Keith