You upgrade script is busted.
I just tried to upgrade from 4.82 to the current release and on this step it got all messed up:
It ran the first time and gave me all errors saying no permission. You should have warned us that it was necessary. So I then did a chmod 777 on all the files, hit refresh, and it says:
This step has completed. If you had file errors, you can REFRESH this page to keep moving files or retry moves that did not work if you fixed any permissions issues.
When you are finished, click here to continue to next step --->
Refresh over and over, nothing works.
Now the software is broken. All the images are no longer properly associated in the database.
How am I supposed to fix this?