HI Pavel - looks like things are working okay now. I haven't tried running any code yet, but at least the toolchain is there.
One thing I noticed is that I didn't need to do the "Add a new toolchain" step:
I reinstalled SB 7.11, and included the Integrate with MPLAB step (which failed because I'm using MPLABX). Then I added the plug-in. I tried to "manually" add the tool chain, but I kept getting the "this folder does not have a toolchain" error message.
But, when I restarted, the tool chain was there.
Thanks again!