This 'upgrade in place' was not working.
In addition, the un-install, then reboot, then install of 6.52 also didn't appear to work (which I think is pretty impossible...
??)
After I UNINSTALLED 6.50 and then installed 6.52 I ran Help\About and it says it's version: 6.5.0.17171 (yes, the local system was highlighted at the time)
I also have another site that we waited upgrading on... over there, I uninstalled version 3, rebooted, installed my JUST downloaded version 6.52 from File Connect and that one also says version: 6.5.0.17171
Has ANYONE else seen this??