Pianoteq Plug-in and Band-in-a-Box

I am trying to use the plug-in for Pianoteq Stage with Band-in-a-Box software, and find that it sounds extremely muffled in comparison to playing the standalone Pianoteq (outside of Band-in-a-Box.)  Is the plug-in totally separate software from the standalone version, or does it get it's settings (user-generated velocity curves etc) from the standalone version?  Do I need to recreate my velocity curves within the plug-in? 

I also notice that my Bluethner add-on (and some of the other demo add-ons) that are avaiable in my standalone version, don't appear to be available in the plug-in version.  Does it need to be re-installed?  If so, how do I do that?

I'm using ASIO4ALLv2, if that matters.....

Thanks!