I dropped and restored the DB to the 4.7 version that I had as backup
I then emptied the folder and uploaded the 531 code
Then ran the upgrade 5 - 5.3
I got these errors
Warning: mysql_fetch_row(): supplied argument is not a valid MySQL result resource in /home/mercuryc/public_html/testgallery/pp-inc.php on line 1041
Warning: mysql_fetch_row(): supplied argument is not a valid MySQL result resource in /home/mercuryc/public_html/testgallery/pp-inc.php on line 3795
during the upgrade
and now the thumbnails still dont show - its looking for this
http://www.mercurycougar.net/gallery..._My_Cougar.jpg
and the file name is this
4096Best_of_My_Cougar.jpg