I renamed the 8bi files and reran the AdobePatchInstaller. It installed new 8bi files in the folders you reference. One is dated 9/19/2012 but the other is dated 2/9/2012.
Now when I run Bridge and open a file in ACR it still comes up as 7.2 beta. The old file must also be located somewhere else.
I guess we are way off topic of dark halos.
Update: I give up. Short of uninstalling CS6 and reinstalling it, I cannot figure out a way to get ACR 7.2 beta upgraded to 7.2.
Update 2: I found a log file for the patch installer that said the patch could not be installed because the patch had been applied already. It is interesting that the installer never told me that...it appeared to execute properly.