My installation completely destroyed my current runtime (on separate volume: /Users/Shared)

I started off with a /Users/Shared/Poser Content

After installation, that directory is now gone and I have 

/Users/Sahred/Poser Pro 2012 Content

It seems to have some of the stuff that was in my previous directory but is missing tons of stuff (most notably, all the Daz stuff.)

In every way, a complete disaster.

I have a mostly sync'd runtime on my desktop, I can use to rebuild the wreckage.  But I can't  believe that the installer would DELETE my previous runtime.